Question

1. If two angles are supplementary and in the ration 4:5, find the angles.

Answer 1

Let the angles be 4a and 5a

Since they are suplementry,

Their sum = 180°

=> 4a + 5a = 180°

=> 9a = 180°

=> a = 20

First angle = 4×20 = 80°

Second angle = 5 × 20 = 100°

Answer 2

Hey Friend ☺

Two angles are supplementary means there sum is 180 degree

Let the common multiple be x

so we get the equation

4x + 5x = 180

》9x = 180

》x = 180/9

》x = 20

So the angels are 4x = 4 × 20 = 80 & 5x = 20 × 5 = 100

Hope it helps you ..!!

✌