AP EAMCET · Maths · Properties of Triangles
Let and be the lengths of the sides of a triangle with its opposite angles and respectively. If and then the angle is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given, a=3b=4 and A=sin-1(34)⇒sinA=34 Using sine rule, we get aSinA= bsinB ⇒ sinB=bsinAa ⇒sinB=4×343 ⇒sin B=1 ⇒B= sin-1 (1) ⇒B=90°.
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