(function(){var loadHandler=window['sl_{29265F00-F305-444C-BBC8-D71D3DE9E7F2}'];loadHandler&&loadHandler(34, '<div id="spr0_ba47c1cd"><div id="spr1_ba47c1cd" class="kern slide"><img id="img17_ba47c1cd" src="data/img10.png" width="1440px" height="810px" alt="" style="left:0px;top:0px;"/></div><div id="spr2_ba47c1cd" class="kern slide"><div id="spr3_ba47c1cd" style="left:-90px;"><div id="spr4_ba47c1cd"><div id="spr5_ba47c1cd"><img id="img0_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr6_ba47c1cd" style="left:405px;"><div id="spr7_ba47c1cd"><img id="img1_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr8_ba47c1cd" style="top:405px;"><div id="spr9_ba47c1cd"><img id="img2_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr10_ba47c1cd" style="left:405px;top:405px;"><div id="spr11_ba47c1cd"><img id="img3_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr12_ba47c1cd" style="left:810px;"><div id="spr13_ba47c1cd"><img id="img4_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr14_ba47c1cd" style="left:1215px;"><div id="spr15_ba47c1cd"><img id="img5_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr16_ba47c1cd" style="left:810px;top:405px;"><div id="spr17_ba47c1cd"><img id="img6_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div><div id="spr18_ba47c1cd" style="left:1215px;top:405px;"><div id="spr19_ba47c1cd"><img id="img7_ba47c1cd" src="data/img0.svg#svgView(preserveAspectRatio(none);viewBox(0.0 0.0 300.0 300.0))" width="405" height="405" alt=""/></div></div></div><div id="spr20_ba47c1cd" style="left:865.759px;top:-186.996px;"><div id="spr21_ba47c1cd"><img id="img8_ba47c1cd" src="data/img18.svg#svgView(preserveAspectRatio(none);viewBox(-6.1 -15.3 307.6 334.9))" width="298.08" height="324" alt=""/></div></div><div id="spr22_ba47c1cd" style="left:417.408px;top:548.385px;"><div id="spr23_ba47c1cd"><img id="img9_ba47c1cd" src="data/img19.svg#svgView(preserveAspectRatio(none);viewBox(0.0 -2.3 595.7 93.6))" width="320.589" height="50.493" alt=""/></div></div><div id="spr24_ba47c1cd" style="left:-71.612px;top:65.483px;"><div id="spr25_ba47c1cd"><img id="img10_ba47c1cd" src="data/img20.svg#svgView(preserveAspectRatio(none);viewBox(-1.5 -1.5 194.6 178.1))" width="261.55" height="238.724" alt=""/></div></div><div id="spr26_ba47c1cd" style="left:114.75px;top:50.323px;"><div id="spr27_ba47c1cd"><img id="img11_ba47c1cd" src="data/img14.svg#svgView(preserveAspectRatio(none);viewBox(0.0 -0.1 282.7 266.2))" width="1239.448" height="718.546" alt=""/></div></div><div id="spr28_ba47c1cd" style="left:1272.489px;top:49.753px;"><img id="img12_ba47c1cd" src="data/img24.png" width="158" height="157" alt="" style="left:-0.016px;top:0.089px;"/></div><div id="spr29_ba47c1cd" style="left:84.646px;top:26.521px;"><img id="img13_ba47c1cd" src="data/img23.png" width="122" height="174" alt="" style="left:-0.056px;top:0.063px;"/></div><div id="spr30_ba47c1cd" style="left:13.688px;top:531px;"><img id="img14_ba47c1cd" src="data/img21.png" width="151" height="255" alt="" style="left:-0.248px;top:0.046px;"/></div><div id="spr31_ba47c1cd" style="left:569px;top:247px;"><img id="img15_ba47c1cd" src="data/img123.png" width="715" height="454" alt="Xét hai tam giác 𝐴𝐵𝐶 và 𝐵𝐴𝐷, ta có: \
𝐴𝐶=𝐵𝐷; 𝐴𝐷=𝐵𝐶; 𝐴𝐵 là cạnh chung \
Suy ra Δ𝐴𝐵𝐶 = Δ𝐵𝐴𝐷\
Do đó  𝐵𝐴𝐸 = 𝐵𝐴𝐶 = 𝐴𝐵𝐷 =30°\
Vì vậy  𝐷𝐸𝐶 = 𝐴𝐸𝐵 =180°− 𝐵𝐴𝐸 − 𝐴𝐵𝐸 \
			=180°−30°−30°=120°"/></div><div id="spr32_ba47c1cd" style="left:116.087px;top:286.066px;"><img id="img16_ba47c1cd" src="data/img122.png" width="435" height="255" alt="" style="left:-0.2px;top:0.046px;"/></div><div id="svg0_ba47c1cd" style="left:516.402px;top:79.609px;"><svg width="344" height="226" viewBox="-106.678 -1.532 344 226"><path fill="#f79646" stroke="#b66d31" stroke-width="2" stroke-linecap="butt" stroke-linejoin="round" d="M81.322,114.468 L55.251,129.25 L48.864,107.837 A93,57 0 1,1 81.322,114.468 Z"/></svg></div><div id="spr33_ba47c1cd" style="left:623.08px;top:81.141px;"><div style="width:0px;"><span id="txt0_ba47c1cd" data-width="83.144531" style="left:52.375px;top:33.833px;">Giải</span></div></div></div></div>', '{"s":[]}');})();