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MrRoyal

The dimensions of the rectangle is 8.5 by  5.5

How to determine the dimensions of the rectangle?

The given parameters are:

  • Length of a rectangle is 3 inches greater than its width
  • Perimeter is 28 inches

This means that:

L = 3 + W

P = 28

Perimeter is calculated as

P = 2 * (L +W)

Substitute L = 3 + W in P = 2 * (L +W)

P = 2 * (3 + W +W)

Evaluate the sum

P = 2 * (3 + 2W)

Substitute P =28

2 * (3 + 2W) = 28

Divide by 2

3 + 2W = 14

This gives

2W = 11

Divide by 2

W = 5.5

Substitute W = 5.5 in L = 3 + W

L = 3 + 5.5

Evaluate

L = 8,5

Hence, the dimensions of the rectangle is 8.5 by  5.5

Read more about perimeter ar:

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