Question

The width is 2/3 of the length.The perimeter is 40.Find its dimensions
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TOM TEST,PLS HELP

Answer 1

Let the length be x.

Given that width is (2/3) of length.

= > (2/3) * x.

= > (2x/3)


Given that perimeter is 40.

We know that perimeter = 2(l + b).

= > 2(l + b) = 40

= > 2(x + 2x/3) = 40

= > x + 2x/3 = 20

= > 5x/3 = 20

= > 5x = 60

= > x = 12.

Now,

= > 2x/3

= > 2(12)/3

= > 24/3

= > 8.



Therefore the length = 12cm and width = 8cm.



Hope this helps!