Question

A quadrilateral having one and only pair of parallel sides is called

Answer 1

It is called as a trapezium.
In trapezium one pair of opp sides are parallel

Answer 2

Heya friend,


Here is your answer,

The quadrilateral which has only one pair of parallel lines is a TRAPEZIUM,

In trapezium, the two sides are unequal but are parallel and a special type of trapezium is an isosceles trapezium in which the two non parallel sides are equal in length.


Hope it helps you.
Thank you.