Answer: 108°
Step-by-step explanation:
A pie is 360°.
From the question, Frank cut a pie into 10 equal slices. This means each pie will be:
360° ÷ 10 = 36°
Since 3 slices are left, that means that the total measure of the angle of the 3 slices left will be:
= 36° × 3
= 108°
The measure of the total angle for 3 slices that are left is 108°.