Question

Perimeter of rectangle?

Answer 1

`"Perimeter"=40 "cm"`

Explanation:

Let `P` be the perimeter of this figure.

`P = AB+BC+CD+DE+EF+FA`

Notice how `AB=EF+CD` and `BC=AF+DE`.

`AB = 5+7=12"cm"`

`8=3+DE => DE = 5"cm"`

`P = 12+8+7+5+5+3=40 "cm"`