Question

Class 7 Maths

Q7 please answer​

Answer 1

Answer:

∠A = 123°

Step-by-step explanation:

In ΔABC

∠B = 35°

∠C = 22°

∠A = x

Angle Sum Property of a triangle states that the sum of all interior angles of a triangle is 180°

∠A + ∠B + ∠C = 180° (Angle Sum Property)

x + 35° + 22° = 180°

x + 57° = 180°

x = 180° - 57°

x = 123°

Hence ∠A = 123°