Question

The angles P, Q, R and S of a quadrilateral are in the ratio 1:3:7:9.Then PQRS is a​

Answer 1

If all the angles are in different ratio then it is

Trapezium.

Answer 2

Step-by-step explanation:

given ratio =1:3:7:9

let one angle is x then then ratio of angles is x,3x,7x,9x

we know that sum of angles in quadrilateral is 360°

x+3x+7x+9x=360

20x=360

x=360/20=18.

the angles are:18,54,126,162