Question

फाइंड द मेजर ऑफ एक्स इन ईच ऑफ द फॉलोइंग फिगर ​

Answer 1

Step-by-step explanation:

Any exterior angle of the triangle is equal to the sum of its interior opposite angles.

so, 7a° - 5a° = x°

x = 2a°

Finding value of a

5a° + 2a° + 2a° = 180° ( angle sum property of a ∆)

9a° = 180

a° = 180/9

a° = 20°

1. 5a° = 5×20°=100°

2. 2a° = 2×20°=40°

3. 2a° = 2×20°=40°

so value of x = 40°( because x = 2a° = 40°)