Step-by-step explanation:
We need to think about this trapezoid as one square and one triangle. So there's a 9 x 12 square, and a 9 x 6 triangle.
So to find the area, we find the area of both shapes and add them together.
9 * 12 + 1/2 * 9 * 6
108 + 27
135 ft^2
To find the perimeter, all we need to do is add the sides together:
9 + 18 + 12 + 11 = 50 ft
Answer:
Perimeter: 135 ft^2
Area: 50 ft
