alleryOne interior angle of a regular pentagon measures how many degrees?
A108
B135
C120
D72
Answer & Solution
Correct answer: A. 108
1. The interior angles of a pentagon add up to 540 degrees.
2. A regular pentagon has 5 equal angles.
3. Each angle = 540 / 5 = 108 degrees.
4. The value 120 belongs to a regular hexagon.
_Source: Wikipedia, Pentagon (CC BY-SA 4.0), Regular pentagons_
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