Question

What is the perimeter of the rectangle with length `5a+7b` and width `3a+5b`?

Answer 1

Perimeter of a rectangle is`=16a+24b`

Explanation:

Length of the rectangle `=5a+7b`
Width of the rectangle `=3a+5b`

Perimeter of a rectangle is `=2(l + b)`

`=2[(5a+7b)+(3a+5b)]`

`=2[5a+7b+3a+5b]`

`=2[8a+12b]`

`=16a+24b`