Question

Question #1590e

Answer 1

Area of the rectangle is `32` square unit.

Explanation:

Let `x` be the breadth of the rectangle , then `x+4`

is the length of the rectangle. Perimeter of the rectangle

is `P= 2(x+4) +2x= 4x+8 ; P=24 :. 4x+8=24` or

`4x=24-8 =16 or x= 16/4=4 ; x+4=8 :.` The length

and breadth of the rectangle are `8 and 4` unit respectively.

Area of the rectangle is `A=` length `*` breadth

`A= 8*4=32` square unit [Ans]

Answer 2

I got `32u^2`

Explanation:

Consider the figure:

we can write:
for the perimeter:
`b+4+b+4+b+b=24`
so that:
`4b=16`
and:
`b=16/4=4u`
and:
`a=b+4=4+4=8u`
and:
`"Area"=ab=8*4=32u^2`