# NCERT Class 8 Mathematics Solutions: Chapter 3 – Understanding Quadrilaterals Exercise 3.1 Part 6 (For CBSE, ICSE, IAS, NET, NRA 2022)

Get top class preparation for NSO-Level-2 right from your home: fully solved questions with step-by-step explanation- practice your way to success.

**Question: 7**

(a) Find

Image:

(b) Find

Image:

**Answer**:

(a)

Here, two angles length are given.

So, sum of interior angle of triangle

Now, sum of linear pair angles is .

(b) Using angle sum property of a quadrilateral.

Sum of interior angles of triangle

Now, sum of linear pair angles is .