Question

In the given figure, the value of x is....

A 15
B 309
C. 45°
D. 60°​

Answer 1

We know that, Sum of all angles forming on straight line is 180°. This statement is called linear pair.

So , ∠6x + 30 °and ∠4x are forming of straight line so, there sum is 180°.

→ 6x + 30° + 4x = 180°

→ 10x + 30° = 180°

→10x = 180° - 30°

→ 10x = 150°

→ x = 150° / 10

→ x = 15°

Verification :-

→ 6x + 30° + 4x = 180°

• Put x = 15 in above equation.

→ 6(15) + 30° + 4(15) = 180°

→ 90 + 30° + 60° = 180°

→ 180 °= 180°

Hence value of x is 15°.

Answer 2

Answer:

answer is 15 degree answer of the question