find the angle which is triple of its supplement

Solution:

Let us assume that the one of the angle be X^o, then the other angle will be 3X^o.

As we know that in supplementary angle the sum of two angles is equal to 180^o.

X + 3X = 180

4X = 180

X = 180/4 = 45^o.

Since one angle is 45^o, then the other angle will be 3X = 3 x 45 = 135^o.

Ans: 45^o and 135^o.