Question

Supplementary angle of ${108.5}^{\circ }$ is

• A. ${70.5}^{\circ }$
• B. ${71.5}^{\circ }$
• C. ${71}^{\circ }$
• D. ${72.5}^{\circ }$

Answer 1

Answer: (B)

${71.5}^{\circ }$

Given angle is $={108.5}^{\circ }$

Let the angle supplementary with the above angle be $x$

Now, the sum of two supplementary angles $={180}^{\circ }$

$\Rightarrow x+{108.5}^{\circ }={180}^{\circ }$

$\Rightarrow x={71.5}^{\circ }$