Question

14.
Find the value of unknown x in the following diagrams
2x
22​

Answer 1

Answer:

Let,

Angle A = x, Angle B = 2x and

Angle C = 90°...........(This is given by the figure)

A + B + C = 180°

x + 2x + 90° = 180°

3x + 90° = 180°

3x = 180° - 90°

3x = 90°

x = 30°

Therefore, Angle A = x = 30° and

Angle A = x = 30° and Angle B = 2x = 2 × 30 = 60°