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.document-html-preview--word div.Section0{page:Section0;}</style><div class="document-html-preview__page document-html-preview__page--word" data-page="1">TUY&#7874;N T&#194;P B&#192;I TO&#193;N&nbsp;TH&#7920;C T&#7870; <o:p></o:p>&#7912;NG D&#7908;NG H&#7878; TH&#7912;C L&#431;&#7906;NG <o:p></o:p>TRONG TAM GI&#193;C VU&#212;NG<o:p></o:p>(C&#211; B&#192;I GI&#7842;I CHI TI&#7870;T)<o:p></o:p><o:p>&nbsp;</o:p>B&#224;i 1:&nbsp;M&#7897;t ng&#432;&#7901;i th&#7907; s&#7917; d&#7909;ng th&#432;&#7899;c ng&#7855;m c&#243; g&#243;c vu&#244;ng &#273;&#7875; &#273;o chi&#7873;u cao c&#7911;a m&#7897;t c&#226;y d&#7915;a, v&#7899;i c&#225;c k&#237;ch th&#432;&#7899;c &#273;o &#273;&#432;&#7907;c nh&#432; h&#236;nh b&#234;n. Kho&#7843;ng c&#225;ch t&#7915; v&#7883; tr&#237; g&#7889;c c&#226;y &#273;&#7871;n v&#7883; tr&#237; ch&#226;n c&#7911;a ng&#432;&#7901;i th&#7907; l&#224; 4,8m v&#224; t&#7915; v&#7883; tr&#237; ch&#226;n &#273;&#7913;ng th&#7859;ng tr&#234;n m&#7863;t &#273;&#7845;t &#273;&#7871;n m&#7855;t c&#7911;a ng&#432;&#7901;i ng&#7855;m l&#224; 1,6m. H&#7887;i v&#7899;i c&#225;c k&#237;ch th&#432;&#7899;c tr&#234;n th&#236; ng&#432;&#7901;i th&#7907; &#273;o &#273;&#432;&#7907;c chi&#7873;u cao c&#7911;a c&#226;y &#273;&#243; l&#224; bao nhi&#234;u? (l&#224;m tr&#242;n &#273;&#7871;n m&#233;t). <o:p></o:p><img width="126" height="154" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/364c33abc0bd10/html-preview-assets/21611967e41a8802f2cd.png" ><o:p>&nbsp;</o:p><span style="mso-spacerun:'yes';font-family:'Times New Roman';mso-fareast-font-family:Calibri;
line-height:150%;color:rgb(255,0,0);mso-ansi-font-weight:bold;
text-decoration:underline;text-underline:single;font-size:13.0000pt" >B&#224;i gi&#7843;i:<span style="mso-spacerun:'yes';font-family:'Times New Roman';mso-fareast-font-family:Calibri;
line-height:150%;color:rgb(255,0,0);mso-ansi-font-weight:bold;
text-decoration:underline;text-underline:single;font-size:13.0000pt" ><o:p></o:p> &#119;&nbsp;H&#236;nh v&#7869; minh h&#7885;a b&#224;i to&#225;n:<o:p></o:p><img width="192" height="321" src="https://daythem.com/public/s3/user.document/user-system-generate/toan/lop-9/364c33abc0bd10/html-preview-assets/84eeea26460fd00fa2b9.png" ><o:p>&nbsp;</o:p> &#119;&nbsp;X&#233;t t&#7913; gi&#225;c ABDH c&#243;: <o:p></o:p></div></section>

Các Bài Toán Thực Tế Ứng Dụng Hệ Thức Lượng Trong Tam Giác Vuông

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