alleryWhat is the sum of the interior angles of a pentagon?
A360 degrees
B540 degrees
C720 degrees
D900 degrees
Answer & Solution
Correct answer: B. 540 degrees
1. A pentagon has n = 5 sides.
2. Sum = (5 - 2) x 180 = 3 x 180 = 540 degrees.
3. 360 is for four sides, 720 for six and 900 for seven.
_Source: Wikipedia, Polygon, section Angles_
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