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25-09-2020
Mathematics

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A rectangle is four times as long as it is wide. The perimeter is 40 cm. Find the length of each side.

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qwerty91 qwerty91

25-09-2020

Answer:

W=4 l=16

Step-by-step explanation:

Let w = width

Let l = length

Since the length is 4 times the width, l=4w

Perimeter of rectangle = 2l + 2w

= 2(4w)+2w

=10w

The perimeter of the rectangle =40, so

40=10w and w=4

Plug w into the length equation : l=4w=4(4)=16

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