Question

Find the area of the shape shown below.
7
3
3

Answer 1

15 sq. units

Explanation:

area of a trapezoid = (a + b) * h/2

where a = 3, b = 7, h = 3

plugin values into the formula:

A = (3 + 7) * (3/2)

A = 15 sq. units.

Answer 2

Split it into two shapes a square and a triangle.

Square = 3 x 3 = 9

Triangle = 1/2 x base x height

The height would be the side of the square = 3

The base would be the length of the top line minus the length of the side of the square = 7-3 = 4

1/2 x 4 x 3 = 6

Total area = 6 + 9 = 15 square units.