Question

What is the measure of the "Central Angle" for the 20% section?

Answer 1

The sum of all central angle is 360.

Determine 20% of 360 to obtain central angle for 20% section.

$\begin{gathered} \frac{20}{100}\times360^{\circ}=36^{\circ}\cdot2 \\ =72^{\circ} \end{gathered}$

So answer is 72 degrees.