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# If a regular pentagon has side lengths of 8 inches, what is the perimeter?

I need help! its mutiple choice.
If a regular pentagon has side lengths of 8 inches, what is the perimeter?

A. 13 inches
B.30 inches
C. 40 inches
D. 45 inches

### 3 Answers by Expert Tutors

4.8 4.8 (9 lesson ratings) (9)
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A regular pentagon has five sides of equal length and all five of the interior angles are equal.
The perimeter of a geometric figure is the linear distance around its interior. Since this pentagon
has 5 sides each of length 8 inches, simply multiply 5 times 8 and the answer is 40 inches - Choice C.
The study of geometry has a great deal of vocabulary to learn and this is critical to your SUCCESS.
Hope this was useful. Best of Luck in your studies.
Jim S. | Physics (and math) are fun, reallyPhysics (and math) are fun, really
4.7 4.7 (185 lesson ratings) (185)
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The pentagon has 5 equal sides. Perimeter is the distance around the edges so the perimeter is 8x5 = 40 inches.

A rectangle has 4 unequal sides. If the sides are L and W the the perimeter = 2L + 2W.

Hope this helps

Jim
Nick W. | Tufts Graduate, BSEE, MSCS, Software EngineerTufts Graduate, BSEE, MSCS, Software Eng...
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To answer this question you need to know the following:
(a) What is the definition of the "perimeter" of a polygon?
(b) How many sides does a pentagon have?