Question

Find the value of x ​

Answer 1

Answer:

2x+x+90°=3x+90=180°

3x=180-90

3x=90

x=90÷3=30

x=30°

Answer 2

Sum of all the angles of a triangle = 180°

x + 2x +90° = 180°

3x + 90° = 180°

3x = 180° - 90°

3x = 90°

x = 90° ÷ 3

x = 30°

then,

2x = 2 × 30° = 60°