Question

Supplementary angle of 100${}^o$ is

• A. 180${}^o$
• B. 90${}^o$
• C. 80${}^o$
• D. 60${}^o$

Answer 1

The correct option is C 80${}^o$

Supplementary angles are two angles that have a sum of ${180}^o.$

The given supplementary angle is ${100}^o$ and we have to find other.

$\Rightarrow$ Supplementary angle $={180}^o-{100}^o$

$={80}^o$.

$\therefore$ Supplementary angle of ${100}^o$ is ${80}^o.$.