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Year 7 Interactive Maths - Second Edition


Perimeter of a Rectangle

Recall that:

The perimeter is the distance around a closed plane figure.

 

The perimeter, P, of a rectangle is given by the formula

P = 2(l + w)

where l is the length and w is the width of the rectangle.

Rectangle


Example 10

Find the perimeter of a rectangular field of length 45 m and width 35 m.

Solution:

P = 160

So, the perimeter is 160 m.

Rectangle of length 45 m and width 35 m
 
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perimeter, rectangle, length, width