Question

find the magnitude of an angle which is 2/3 of its supplement

Answer 1

Let the angle be x°.
⇒It's supplement:(180-x)°.
Given,
$\frac{2(180-x)}{3}$=x
⇒$360-2x=3x$
⇒$360=5x$
⇒$x= \frac{360}{5}$=72
Ans: The angle is 72°
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Answer 2

Let the angle be x°.
=x
⇒
⇒
⇒
The angle is 72°

Please choose it the best answer.
MASelvam IITian
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