Dr Pooranmal and Ashfaq A Khan Solutions for Chapter: Quadrilaterals, Exercise 1: EXERCISE 18.1

In the adjoining figure, $ABCD$ is a quadrilateral:

(a) Name its pairs of adjacent sides.
(b) Name its pairs of opposite sides
(c) The angle opposite to A is...
(d) Name a pair of adjacent angles.

The angles of quadrilateral are $108°$ and the remaining three angles are equal. Find the three equal angles.

Two angles of a quadrilateral are of measure $75°$ and $105°$ and the other two angles are equal. What is the measure of these angles.

The angles of a quadrilateral are in the ratio $1 : 2 : 3 : 4$. Find the measure of four angles.

A quadrilateral has all four angles of equal measure, What is the measure of each?

In the adjoining figure, find the measure of $\angle LMN$.

In the adjoining figure, $ABCD$ is a quadrilateral. If the bisector of $\angle A$ and $\angle B$ meet at $P$, determine $\angle APB$.

The sides of a quadrilateral are produced in order. What is the sum of the four exterior angles?