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(a) Write a formula for the perimeter,P,of a rectangle width(W) and length (L).(b) Use your formula to calculate the perimeter of a rectangle with width 7cm and length 5cm.

Respuesta :

Explanation

Part A

Since the rectangle has four sides comprising of two lengths and widths, the formula for the perimeter of a rectangle is given as;

Answer:

[tex]P=2L+2W[/tex]

Part B

Using the formula to calculate the perimeter of a rectangle with width 7cm and length 5cm. We will have;

[tex]\begin{gathered} P=2L+2W \\ P=2\times5+2\times7 \\ P=10+14 \\ P=24cm \end{gathered}[/tex]

Answer: 24cm

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