# Find the complement of each of the following angles:

**Solution:**

We use the concept of angles adding up to 90° to solve the question.

The sum of complementary angles is always 90°. If the given angle is x, then we can find complementary angle by subtracting x from 90°. Let us now find complement angles.

(i) Given angle = 20°

Complement angle of 20° = 90° − given angle

= 90° − 20° = 70°

(ii) Given angle = 63°

Complement angle of 63° = 90° − given angle

= 90° − 63° = 27°

(iii) Given angle = 57°

Complement angle of 57° = 90° − given angle

= 90° − 57° = 33°

Learn more about complementary angles.

**Video Solution:**

## Find the complement of each of the following angles:

### NCERT Solutions for Class 7 Maths - Chapter 5 Exercise 5.1 Question 1

Find the complement of each of the following angles:

(i)Complement angle of 20° = 70, (ii) Complement angle of 63° = 23, (iii) Complement angle of 57° = 33.