Math Area of Composite Figures

• 36 ft²

• 45 ft²

• 63 ft²

• 54 ft²

How do you find the shaded area of the square?

• Subtract the area of the circle from the area of the square.

• Subtract the area of the square from the area of the circle.

• Subtract 1/4 the area of the square from the area of the circle.

• Subtract 1/4 the area of the circle from the area of the square.

What is the area of the composite figure?

• 96 cm²

• 16 cm²

• 80 cm²

• 32 cm²

What is the area of the composite figure?

• 48 cm²
• 90 cm²
• 78 cm²
• 12 cm²

• 36 in²

• 27 in²

• 18 in²

• 17 in²

To find the total area of a composite figure of all the same color you must do the following:

First - break the irregular figure down into common shapes (such as circles, squares, or triangles)

Second - find the area of each separate shape

Last - Take each area and _____________________.

• subtract them

• add them together

• multiply them

• divide them

The correct description for the units used to measure area would be___________________.

• square units

  (examples: cm², ft², in²)

• units

  (examples: cm, ft, in)

• you do not need a label.

You can use the STAAR Mathematics Resource Chart to find your formulas when taking a test. Is true or false?

• True

• False

What is the area of the composite figure?

• 40 sq cm
• 65 sq cm
• 52.5 sq cm
• 25 sq cm

Farmer Bob needs to build a fence to keep his chickens in his yard.

The yard is 40 feet long and 20 feet wide. How much fence will he need to enclose the yard?

(Is he finding the area or the perimeter?)

• 800 square feet

• 120 feet

• 60 feet

• 600 square feet