Question

Find the measure of the missing angle.

Answer 1

Given : Find the measure of the missing angle.

Solution : According to the question, here we are provided with a variable α. An angle which is 90° and another angle which is 29° are to be added and the result is 180°. So, subtracting from 180° we will get the required answer

• α + 90° + 29° = 180° [Reason : straight ∠]

• α + 119° = 180°

• α = 180° - 119°

• α = 61°

Henceforth, the missing angle is 61°

Answer 2

a = 61

Explanation:

The three angles form a straight line which is 180 degrees.

a + 90 + 29 = 180

a + 119 = 180

a = 180-119

a = 61