Question

Find the measure of the supplementary angle of ${54}^o$

• A. ${26}^o$
• B. ${126}^o$
• C. ${34}^o$
• D. ${134}^o$

Answer 1

The correct option is B ${126}^o$

Two angles are Supplementary when their sum is equal to ${180}^{\circ }$.

If one angle $={54}^{\circ }$, let the other angle be $x$.

Hence, $x+{54}^{\circ }={180}^{\circ }$

$x={180}^o-{54}^o={126}^o$

Hence, complementary angle is ${126}^o$.