Question

∠1 ​ and ∠2 are complementary.



∠1=x°∠2= (3x+30)°
Find the value of x

Answer 1

Answer:

The value of x is 15 .

Option (A) is correct.

Step-by-step explanation:

As given

∠1 and ∠2 are complementary.

i.e the sum of ∠1 and ∠2 is 90° .

Thus

∠1 + ∠2 = 90°

x° + (3x+30)° = 90°

x + 3x + 30 = 90

4x = 90-30

4x = 60

x = 15

Therefore the value of x is 15 .

Answer 2

∠1 and ∠2 are complementary. i.e the sum of ∠1 and ∠2 is 90° . Therefore the value of x is 15 .