Question

given, angle b= 29+15, angle c= 39+5. Find the value of b and c​

Answer 1

Correct option is A)

Given:-

∠B=76°

∠C=48°

∠A=?

As we know that, sum of all angles of a triangle is 180°.

∴∠A+∠B+∠C=180°

⇒∠A+76°+48°=180°

⇒∠A+124°=180°

⇒∠A=180°−124°

⇒∠A=56°