Question

two angles are such that one angle is 4by5 of its supplement. find the measure of angles?

Answer 1

Hii friend,

Let one angle be x
the other angle will be 4x/5
sum of supplementary angles is 180°
Btp,
x+4x/5=180
(5x+4x)/5=180
9x/5=180
9x=900
x=900/9
x=100
THEREFORE,
One angle =100°
Another angle = 4/5 * 100° = 80°

The two angles are 100° and 80°
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Answer 2

Let one angle be x°
the other angle is (4x/5)°
so x+4x/5=180°
9x=900
x=100°
other angle =80°