The circle has been divided into 5 equal parts. Point T is the center of the circle.
Angle 1 is the central angle of one of the 5 equal parts.
Question
What is the measure of angle 1?
Answer options with 4 options
A.
20°
B.
36°
C.
72°
D.
80°
Since the circle has been divided into 5 equal parts, the central angle of each part is 360°/5 = 72°. Therefore, the measure of angle 1 is 72°. The correct answer is C.
72°.