(1) If the perimeter of a regular pentagon is 30, how long is each side?

Question

(1) In the perimeter of a regular pentagon is 30, how long is each side?
(2) If one side of a regular pentagon is 15 inches long, what is the perimeter?
(3) If the perimeter of a regular octagon is 8z-16, How long is each side?

Answer 1

1) Pentagon has 5 sides.
Perimeter = 30.
Each side = 30/5 = 6
2) One side of Pentagon = 15
Perimenter = 15*5=75 inches
3) Octagon has 8 sides.
Perimeter = 8z-16
One side = (8z-16)/8
= z-2

Answer 2

A pentagon is 5 sided

if the perimeter is 30, divide 30 by 5

30 / 5 = 6

Each side is 6

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If one side of a regular pentagon is 15 inches long, What is the perimeter

15 x 5 = 75

The perimeter is 75 inches.

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8z - 16 = 0

8z - 16 + 16 = 0 + 16

8x = 16

8z/8 = 16/8

z = 16/8

z = 2

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Answer 3

1) 30/5 = 6
2) 15 * 5 = 75
3) 8z-16 = 0
8z = 16
z = 2

Answer 4

It should be approximately 130.5 sq ft. Since the apothem is APPROXIMATELY 6 feet long we can make 10 right triangles with base = 6 height = 4.35 Since the area of triangle is 1/2bh We have in this case 3 x 4.35 = 13.05 For area of pentagon 10x 13.05 = 130.5

Answer 5

1. 6 units
2. 75 inches
3. z-2 units

Answer 6

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