In triangleABC, ifb=3,c=4and∠B=π3,then number of such triangle is 1 (b) 2 (c) 0 (d) infinite View Solution If the triangle whose vertices are A(4,3), B(6,-2) and C(k,-3) is right -angled at A, then : K= View
If a triangle ABC, inscribed in a fixed circle, be slightly varied in such away as to have its vertices always on the circle, then show that (d a)/(c a
百度试题 结果1 题目In a triangle ABC if a=13 cm, b=21 cm, C=58^(° ) then the value of c is 相关知识点: 试题来源: 解析 c=√(320.67)=17.90 cm 反馈 收藏
【题目】7. In the triangle ABC, if the interior angles satisfy$$ i n ( A - B ) = \frac { 3 } { 5 } \sin C \frac { \tan A } { \tan B } $$( )(A) 2. (B) 4. (C) 1. (D) 5. 相关知识点: 试题来源: 解析 【解析】 7.译文:在△ABC中,如果内角满足$$ \sin (...
Answer to: If triangle ABC is isosceles, with AB = AC, then the medians drawn from vertices B and C must have the same length. Write a two-column...
If in a triangle ABC , 2cosAa+cosBb+2cosCc=abc+bca, then the value of the angle A, is View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium NCERT Solutions for Class 11 English Medium ...
If in a triangle ABC right angled at B, AB = 6 units and BC = 8 units, then find the value of sin A. cos C + cos A. sin C. Video Solution free crash course Study and Revise for your exams Unlock now Text SolutionGenerated By DoubtnutGPT To find the value of sinA⋅cosC+cosA...
Draw five triangles and measure their sides. Check in each case, if the sum of the lengths of any two sides is always less than the third side. 相关知识点: 试题来源: 解析Solutions:Case 1. In triangle ABCAB= 2.5 cmBC = 4.8 cm andAC...
D The principle to remember here is that an exterior angle of a triangle--such as ∠ADB--is equal to the sum of the remote interior angles of the triangle, in this case ∠DBC and ∠DCB (=∠ACB) of triangle BDC. Thus, ∠DCB+∠DBC=4n, or ∠DBC=3n=45°, and therefore n=15°...
In {eq}\triangle ABC {/eq}, a= 1.3 cm, \angle b= 2.8 cm, {eq}\angle A = 33^\circ. {/eq} Determine the measure of {eq}\angle B {/eq} if it exists. The Inverse Sine Function: In trigonometry, the inverse sine function, denoted {eq}...