In abc ab 8 bc 10
Web(1)证明: ∵bc=10 ,cd=8,bd=6,∴bd^2+dc^2=bc^2 ∴ bdc是直角三角形∴∠cdb=90° (2)解:设ac=x.∵ab=ac=x , ∴ad=x-6由(1),知∠cdb=90°, ∴ acd 为直角三角形,∴x^2=(x-6)^2+8^2 ,解得 x=(25)/3故ac的长为 (25)/3解题通法利用勾股定理及其逆定理综合解题的方法:通过勾股定理的逆定理证明一个 ... Web1 In ABC below, the measure of ∠A =90°, AB =6, AC =8, and BC =10. Which ratio represents the sine of ∠B? 1) 10 8 2) 8 6 3) 6 10 4) 8 10 2 The diagram below shows right triangle …
In abc ab 8 bc 10
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http://www.1010jiajiao.com/czsx/shiti_id_f9d3c7c6c0119641fd29606c807d2463 Web∆ABC में जिसका कोण B समकोण है AB=24cm और BC=7cm है। निम्नलिखित का मान ज्ञात कीजिए Trigonometry ...
WebExplanation for the correct option: Given: In the triangle A B C, B C → = 8, C A → = 7, and A B → = 10. A N → = 10 × 7 2 + 10 2 - 8 2 2 × 7 × 10 = 10 × 49 + 100 - 64 140 = 10 × 149 - 64 … WebIn a right triangle ABC, ∠ B = 90°, (i) If AB = 6 cm, BC = 8 cm, find AC (ii) If AC = 13 cm, BC = 5 cm, find AB. Solution: In a right-angled triangle if two sides are given then the third side can be calculated using the Pythagoras theorem. Given that, in the right triangle ABC, ∠ B = 90°, thus AC is the hypotenuse
WebMar 22, 2024 · Transcript. Ex 8.1, 1 In Δ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine : sin A, cos A Step1 : Finding sides of triangle In right triangle ABC, using … WebIn a ABC , AD is the bisector of ∠ BAC. If AB =8 cm , BD =6 cm and DC =3 cm. Find ACa 4 cmb 6 cmc 3 cmd 8 cm. Login. Study Materials. NCERT Solutions. NCERT Solutions For Class 12. NCERT Solutions For Class 12 Physics; ... If AB = 10 cm, AC = 14 cm and BC = 6 cm, find BD and DC.
WebMath. Geometry. Geometry questions and answers. Let AB==8, AC=10, and BC=12 sides of a triangle ABC. Let be the point BC on such that BD/DC . The distance between points and is:
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