Question

The length of a rectangle is 15m more than its breath .if perimeter of rectangle is 80m ,find the dimensions of the rectangle

Answer 1

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Answer 2

We know that Perimeter is the sum of all sides:

Perimeter of a rectangle is : l + l + b + b

==> 2l + 2b

Let the breadth of the rectangle be x

So:

length is 15 m + x

Perimeter is 80 m

So:

2l + 2b = 80m

==> 2 ( 15m + x ) + 2x = 80m

==> 30m +2x +2x= 80m

==>  4x = 80m - 30m

==> 4x =50m

==> x = 50m/4

==> x = 12.5 m

Thus the breadth is 12.5 m and length is 12.5 m + 15 m = 27.5 m

Breadth = 12.5 m

Length = 27.5 m

Hope it helps you:-)

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