### Home > MC2 > Chapter 7 > Lesson 7.2.3 > Problem7-90

7-90.

Find the area and perimeter of each shape below. Show your steps and work.

1. Perimeter: Add the lengths of each of he sides around the outside of the figure.

$13 + 30 + 13 + 13 + 30 + 13 = 112$ units

The shape consists of two trapezoids of equal size. Find the area of one trapezoid and double it to find the area of the entire shape.

The area of a trapezoid can be found with the following formula:
$A=\frac{1}{2}(\text{base}_1+\text{base}_2)(\text{height})$

$420$ square units

1. You can use the equation for the area of a trapezoid to find the total area.

The trapezoid is highlighted.
Notice that there is a rectangular section missing from the trapezoid.
We will need to find that area as well.

$744$ sq. units.