Question

List the measurements of three different rectangles that each has a perimeter of 20 units.

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Answer to a math question List the measurements of three different rectangles that each has a perimeter of 20 units.

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Eliseo

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110 Answers

1. Start with the perimeter formula for a rectangle:

P = 2l + 2w

.
2. Given that the perimeter

is 20 units, set up the equation:

2l + 2w = 20

.
3. Divide the entire equation by 2:

l + w = 10

.
4. Find pairs of integer values (l, w) that satisfy the equation

l + w = 10

:
- If

l = 1

, then

w = 9

l + w = 1 + 9 = 10

- If

l = 2

, then

w = 8

l + w = 2 + 8 = 10

- If

l = 3

, then

w = 7

l + w = 3 + 7 = 10

Each of these pairs represents measurements of a rectangle with a perimeter of 20 units:
-

(1, 9)

(2, 8)

(3, 7)

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List the measurements of three different rectangles that each has a perimeter of 20 units.

Answer to a math question List the measurements of three different rectangles that each has a perimeter of 20 units.

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