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Find the perimeter and area:
A pentagon has side lengths of 11cm.

User Kevhender
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2 Answers

1 vote
Perimeter: To calculate the perimeter is easy, just multiply 11cm by the number of sides, which in this case, is 5.

So 5 * 11cm = 55cm.

Area: To calculate the area, it's a bit more tricky, the formula is
(1)/(4) \sqrt{5(5+2+ √(5) )} s^(2).

Since it's very hard to do, I got a calculator and did it.

And the answer is:
208.18cm^(2)


Hope this helped! c:
Find the perimeter and area: A pentagon has side lengths of 11cm.-example-1
User FractalSpace
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5.4k points
1 vote
Let's find the perimeter and area.

Perimeter
A pentagon has 5 sides. Each side is 11 cm. All we need to do is multiply the length of each side by how man sides there are.
5×11=55

So, the perimeter is 55 cm.

Area
It's a very challenging formula for finding the area of a pentagon and there are calculators used for finding the area of shapes like the pentagon and that's what I used.

The area is 208.178 cm²
User Aei
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6.0k points