<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
        xmlns:xhtml="http://www.w3.org/1999/xhtml"
        xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"
        xmlns:image="http://www.google.com/schemas/sitemap-image/1.1">
    
    <url>
        <loc>https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/a/circumscribed-circle-of-a-triangle</loc>
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/a/circumscribed-circle-of-a-triangle" />
        
        <lastmod>2026-01-08T07:45:36.440950114Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="circumscribed-circle-of-a-triangle">
            <Attribute name="title">Đường tròn ngoại tiếp một tam giác</Attribute>
            <Attribute name="description">Học sinh tìm hiểu về đường tròn ngoại tiếp của tam giác , tâm và bán kính đường tròn ngoại tiếp tam giác.</Attribute>
            
            <Attribute name="type">article</Attribute>
            
            </DataObject>
        </PageMap>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/toan-lop-9-viet-nam/xe71e73aeedaeaf4a:hinh-hoc-phang-toan-lop-9/xe71e73aeedaeaf4a:duong-tron-ngoai-tiep-tam-giac-duong-tron-noi-tiep-tam-giac-toan-lop-9/v/hypotenuse-of-right-triangle-inscribed-in-circle</loc>
        
        <xhtml:link rel="alternate" hreflang="bg"
                    href="https://bg.khanacademy.org/math/8-klas/x5903b96cf58cdc2a:vpisani-opisani-mnogoagalnitsi/x5903b96cf58cdc2a:vpisana-v-trig-okr/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="da"
                    href="https://da.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="de"
                    href="https://de.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="en"
                    href="https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="es"
                    href="https://es.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="fr"
                    href="https://fr.khanacademy.org/math/3eme-annee-secondaire/xd903d14ae2b1276e:geometri-puthagore-triangle-rectangle-et-trigonometrie/xd903d14ae2b1276e:autres-proprietes-du-triangle-rectangle/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="gu"
                    href="https://gu.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="hi"
                    href="https://hi.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="hy"
                    href="https://hy.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="ka"
                    href="https://ka.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="kn"
                    href="https://kn.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="ko"
                    href="https://ko.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="pa"
                    href="https://pa.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="pl"
                    href="https://pl.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="pt"
                    href="https://pt.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="pt-pt"
                    href="https://pt-pt.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="tr"
                    href="https://tr.khanacademy.org/math/11-sinif/xa522689791108f17:5-unite/xa522689791108f17:cemberde-acilar/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="uk"
                    href="https://uk.khanacademy.org/math/7-klas/x035ef06b16a9ec90:kolo-ta-krug/x035ef06b16a9ec90:opisane-ta-vpisane-kola-trikutnika/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="ur"
                    href="https://ur.khanacademy.org/math/grade-10-math-snc-aligned/x403faa8cdfdccaea:chords-and-arcs-of-a-circle/x403faa8cdfdccaea:application-of-chords-and-arcs/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="uz"
                    href="https://uz.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/toan-lop-9-viet-nam/xe71e73aeedaeaf4a:hinh-hoc-phang-toan-lop-9/xe71e73aeedaeaf4a:duong-tron-ngoai-tiep-tam-giac-duong-tron-noi-tiep-tam-giac-toan-lop-9/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <xhtml:link rel="alternate" hreflang="zh-hans"
                    href="https://zh.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/hypotenuse-of-right-triangle-inscribed-in-circle" />
        
        <lastmod>2021-02-23T10:33:37Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="hypotenuse-of-right-triangle-inscribed-in-circle">
            <Attribute name="title">Các hình nội tiếp đường tròn: tìm đường kính</Attribute>
            <Attribute name="description">Tìm đường kính của một hình tròn bằng cách dùng tam giác vuông nội tiếp. </Attribute>
            <Attribute name="author">Sal Khan</Attribute>
            <Attribute name="type">video</Attribute>
            
            </DataObject>
        </PageMap>
        
        <video:video>
            <video:thumbnail_loc>https://cdn.kastatic.org/googleusercontent/UgaTdzGTdq68qT_SfFT1TiNOibHfIDB4KKd7L0XWsYwIdg8KVM8dURWVJZshmWwwOiglIwpl3sSpdRnDLmwwMNRw0Q</video:thumbnail_loc>
            <video:title>Các hình nội tiếp đường tròn: tìm đường kính</video:title>
            <video:description>Tìm đường kính của một hình tròn bằng cách dùng tam giác vuông nội tiếp. </video:description>
            <video:player_loc>https://cdn.kastatic.org/ka-youtube-converted/toDvXMQwhwU.mp4/toDvXMQwhwU.mp4</video:player_loc>
            <video:duration>153</video:duration>
            <video:category>Đường tròn ngoại tiếp tam giác. Đường tròn nội tiếp tam giác</video:category>
        </video:video>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/circumcircle-of-a-triangle</loc>
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/circumcircle-of-a-triangle" />
        
        <lastmod>2025-12-16T08:25:51.449873842Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="circumcircle-of-a-triangle">
            <Attribute name="title">Đường tròn ngoại tiếp tam giác</Attribute>
            <Attribute name="description">Học sinh luyện tập về khái niệm đường tròn ngoại tiếp tam giác, xác định tâm và bán kính  đường tròn ngoại tiếp tam giác, tam giác vuông, đều,...</Attribute>
            <Attribute name="author">KAV</Attribute>
            <Attribute name="type">exercise</Attribute>
            
            </DataObject>
        </PageMap>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/incircle-of-a-triangle</loc>
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/incircle-of-a-triangle" />
        
        <lastmod>2026-01-12T09:20:49.920332674Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="incircle-of-a-triangle">
            <Attribute name="title">Đường tròn nội tiếp tam giác&#xA;</Attribute>
            <Attribute name="description"> Học sinh luyện tập về khái niệm đường tròn ngoại tiếp tam giác, xác định tâm và bán kính  đường tròn nội tiếp tam giác, tam giác vuông, đều,...</Attribute>
            <Attribute name="author">KAV</Attribute>
            <Attribute name="type">exercise</Attribute>
            
            </DataObject>
        </PageMap>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/toan-lop-9-viet-nam/xe71e73aeedaeaf4a:hinh-hoc-phang-toan-lop-9/xe71e73aeedaeaf4a:duong-tron-ngoai-tiep-tam-giac-duong-tron-noi-tiep-tam-giac-toan-lop-9/v/solving-for-unknown-angle</loc>
        
        <xhtml:link rel="alternate" hreflang="bg"
                    href="https://bg.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="da"
                    href="https://da.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="de"
                    href="https://de.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="en"
                    href="https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="es"
                    href="https://es.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="fr"
                    href="https://fr.khanacademy.org/math/3eme-annee-secondaire/xd903d14ae2b1276e:geometri-puthagore-triangle-rectangle-et-trigonometrie/xd903d14ae2b1276e:autres-proprietes-du-triangle-rectangle/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="gu"
                    href="https://gu.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="hy"
                    href="https://hy.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="ka"
                    href="https://ka.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="kn"
                    href="https://kn.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="ko"
                    href="https://ko.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="pa"
                    href="https://pa.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:circles/xfd53e0255cd302f8:inscribed-shapes-problem-solving/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="pl"
                    href="https://pl.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="pt"
                    href="https://pt.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="pt-pt"
                    href="https://pt-pt.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="tr"
                    href="https://tr.khanacademy.org/math/7-sinif/x3940cffa71f982e7:5-unite/x3940cffa71f982e7:cemberde-merkez-acilar-ve-bu-acilarin-gordugu-yaylar/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="uk"
                    href="https://uk.khanacademy.org/math/7-klas/x035ef06b16a9ec90:kolo-ta-krug/x035ef06b16a9ec90:opisane-ta-vpisane-kola-trikutnika/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="ur"
                    href="https://ur.khanacademy.org/math/grade-10-math-snc-aligned/x403faa8cdfdccaea:tangent-and-angles-of-a-circle/x403faa8cdfdccaea:angles-in-a-segment-of-circle/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="uz"
                    href="https://uz.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/toan-lop-9-viet-nam/xe71e73aeedaeaf4a:hinh-hoc-phang-toan-lop-9/xe71e73aeedaeaf4a:duong-tron-ngoai-tiep-tam-giac-duong-tron-noi-tiep-tam-giac-toan-lop-9/v/solving-for-unknown-angle" />
        
        <xhtml:link rel="alternate" hreflang="zh-hans"
                    href="https://zh.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-shapes/v/solving-for-unknown-angle" />
        
        <lastmod>2022-11-01T04:03:24.707841897Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="solving-for-unknown-angle">
            <Attribute name="title">Các hình nội tiếp đường tròn: tìm số đo góc</Attribute>
            <Attribute name="description">Tìm số đo góc có 1 cạnh là đường kính của đường tròn.</Attribute>
            
            <Attribute name="type">video</Attribute>
            
            </DataObject>
        </PageMap>
        
        <video:video>
            <video:thumbnail_loc>https://cdn.kastatic.org/ka_thumbnails_cache/44f19821-883b-4c54-a10d-b6efe7573af0_1280_720_base.png</video:thumbnail_loc>
            <video:title>Các hình nội tiếp đường tròn: tìm số đo góc</video:title>
            <video:description>Tìm số đo góc có 1 cạnh là đường kính của đường tròn.</video:description>
            <video:player_loc>https://cdn.kastatic.org/ka-youtube-converted/hrQ5Qkk7YLQ.mp4/hrQ5Qkk7YLQ.mp4</video:player_loc>
            <video:duration>349</video:duration>
            <video:category>Đường tròn ngoại tiếp tam giác. Đường tròn nội tiếp tam giác</video:category>
        </video:video>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/problems-applying-the-properties-of-incircles-and-circumcircles</loc>
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/problems-applying-the-properties-of-incircles-and-circumcircles" />
        
        <lastmod>2025-11-24T04:42:48.882769923Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="problems-applying-the-properties-of-incircles-and-circumcircles">
            <Attribute name="title">Các bài toán vận dụng sử dụng đường tròn nội tiếp và đường tròn ngoại tiếp</Attribute>
            <Attribute name="description">Học sinh luyện tập vận dụng  được tính chất của đường tròn ngoại tiếp, nội tiếp tam giác để giải toán.</Attribute>
            <Attribute name="author">KAV</Attribute>
            <Attribute name="type">exercise</Attribute>
            
            </DataObject>
        </PageMap>
        
    </url>
    
    <url>
        <loc>https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/apply-the-properties-of-the-circumscribed-circle-and-the-inscribed-circle-of-a-triangle-to-solve-word-problems</loc>
        
        <xhtml:link rel="alternate" hreflang="vi"
                    href="https://vi.khanacademy.org/math/noi-dung-toan-dang-xay-dung-chua-dua-vao-su-dung/xc773b6356e0c4d23:san-xuat-bo-sung-noi-dung/xc773b6356e0c4d23:lop-9/e/apply-the-properties-of-the-circumscribed-circle-and-the-inscribed-circle-of-a-triangle-to-solve-word-problems" />
        
        <lastmod>2025-12-16T08:25:51.449873842Z</lastmod>
        
        <PageMap xmlns="http://www.google.com/schemas/sitemap-pagemap/1.0">
            <DataObject type="document" id="apply-the-properties-of-the-circumscribed-circle-and-the-inscribed-circle-of-a-triangle-to-solve-word-problems">
            <Attribute name="title">Vận dụng được tính chất của đường tròn ngoại tiếp, nội tiếp tam giác để giải quyết một số vấn đề trong thực tế</Attribute>
            <Attribute name="description">Vận dụng được tính chất của đường tròn ngoại tiếp, nội tiếp tam giác để giải quyết một số vấn đề trong thực tế</Attribute>
            <Attribute name="author">KAV</Attribute>
            <Attribute name="type">exercise</Attribute>
            
            </DataObject>
        </PageMap>
        
    </url>
    
</urlset>
