Q. 54.6( 27 Votes )

# Two supplementary angles are in the ratio 4 : 5. Find the angles.

Answer :

Supplementary angles are in the ratio 4: 5

Let the angles be 4x and 5x.

It is given that they are supplementary angles

Therefore,

4x + 5x = 180^{o}

x = 20^{o}

Hence, 4x = 80^{o}

5x = 100^{o}

Therefore, angles are 80^{o} and 100^{o}.

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