**Download NCERT Solutions for Class 7 Maths Chapter 5 – Lines and Angles**

**Class 7 Maths NCERT Solutions ****Chapter 5 – Lines and Angles ****comprises of the 2 Exercises**

### NCERT Solutions for Class 7 Maths Chapter 5 – Exercise 5.1

**1. Find the complement of each of the following angles:**

Note: When the sum of the measures of two angles is 90°, then the angles are called complementary angles.

Complement = 90^{o} – 20^{o
}= 70^{o}

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