Question

the angles A,B,C,D of quadrilateral ABCD are in the ratio of 1:3:7:9 find the measure of all the angles​

Answer 1

Step-by-step explanation:

let common multiple be X

therefore 1x+3x+7x+9x= 360⁰

20x = 360

x = 16

Angle A is 16 ⁰

angle b is 48 ⁰

angle C is 112⁰

angle D is 144 ⁰