Question

Find the value of supplementary angle of ${90}^{\circ }$.

• A. ${90}^{\circ }$
• B. ${110}^{\circ }$
• C. ${90}^{\circ }$
• D. ${70}^{\circ }$

Answer 1

The correct option is A ${90}^{\circ }$

Two angles are supplementary when they add up to ${180}^{\circ }$.
Therefore, the supplementary angle of ${90}^{\circ }$ is,
${180}^{\circ }$ - ${90}^{\circ }$ = ${90}^{\circ }$