CPM Homework Help : ACC6 Problem 8-81

Find the area and perimeter of the figure shown below. All angles are right angles. Show your work clearly.

An enclosed figure: Starting at the upper left corner: right 3, up 3, right 4, down 7, left 5, down 4, right 8, down 2, left 10, and up an unknown amount, to enclose the figure.

Step 1:

Find the missing side. Unknown side length for the figure is added, 10 centimeters.

Step 2:

Add up all the sides to find the perimeter.

Partial Answer:

The perimeter is $56$ cm.

Step 3:

Break up the figure into rectangles.

Step 4:

Find the area of each rectangle and add them together to find the area of the figure.

Answer:

$20 \text{ sq cm} + 8 \text{ sq cm} + 28 \text{ sq cm} + \\ 12 \text{ sq cm} = 68 \text{ sq cm}$