Question

what is the value of /_ABC ?
(a) 66°
(b) 114°
(c ) 38°
(d) 76° ​

Answer 1

Answer:

Correct option is

A

56

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°