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Students were asked to write a formula for the length of a rectangle by using the formula for its perimeter,p=2L+2w

User Bootsmaat
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1 Answer

4 votes

Answer:

L = (P - 2W) / 2

Explanation:

Given:

P = 2L + 2W

Where,

P = perimeter of a rectangle

L = length of the rectangle

W = width of the rectangle

Make L the subject of the formula

P = 2L + 2W

Subtract 2W from both sides

P - 2W = 2L + 2W - 2W

P - 2W = 2L

Divide both sides by 2

(P - 2W) / 2 = 2L / 2

L = (P - 2W) / 2

The answer is L = (P - 2W) / 2

User Jason Young
by
5.7k points
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