Question

can any one please solve it question no 8 ka c please tell me the full ans i am in hurry​

Answer 1

Step-by-step explanation:

(a)

Given :

Interior angle = 60°

= 55°

Find :

The exterior angle x.

Solution :

Sum of interior angle = 180°

600° + 55° + y = 180°

115° + x = 180°

y = 180° – 115°

y = 65°

Therefore,

x = 180° - 65°

x = 115°

Hence :

The exterior angle is 115°.

(b)

Given :

Exterior angle = 120°

Interior angle = 60°

Find :

The value of x.

Solution :

➡ 180° - 120°

➡ 60°

So,

sum of interior angle = 180°

x + 60° + 60° = 180°

x + 120° = 180°

x = 180° – 120°

x = 60°

Hence :

The value of x is 60°.

Answer 2

Step-by-step explanation:

20y - 3 [10x + 2 {2x - 5 (3x - 2y - x-y)}]