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# Find the value of x in the trapezium ABCD given below.

**Solution:**

Given, ABCD is a __trapezium__.

We have to find the value of x.

We know that the angles on either side of the base of a trapezium are __supplementary.__

So, (x - 20)° + (x + 40)° = 180°

x + x - 20° + 40° = 180°

2x + 20° = 180°

2x = 180° - 20°

2x = 160°

x = 160°/2

Therefore, x = 80°

**✦ Try This: **Find the values of x and y in the given trapezium ABCD.

**☛ Also Check: **NCERT Solutions for Class 8 Maths

**NCERT Exemplar Class 8 Maths Chapter 5 Problem 163**

## Find the value of x in the trapezium ABCD given below.

**Summary:**

The value of x in the trapezium ABCD is 80°.

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