Area of Composite Figure

Multiple Choice

Which of the following is a composite figure?

• A rectangle

• A triangle

• A figure made by combining a rectangle and a semicircle

• A circle

Multiple Select

Which shapes can be used to make up a composite figure? Select all that apply.

• Triangle

• Square

• Rectangle

• Semicircle

Open Ended

Why is it important to break a composite figure into simpler shapes when finding its area?

Multiple Choice

Which of the following is the best strategy to find the area of a composite figure?

• Break the figure apart, find the area of each shape, and add the areas together.

• Estimate the area by guessing.

• Only use the perimeter to find the area.

• Multiply the lengths of all sides together.

Multiple Choice

Estimate the area of the arrow shown in the grid.

• 10 square units

• 12 square units

• 14 square units

• 16 square units

Multiple Choice

Estimate the area of the red cross-shaped region in the image by counting the number of filled squares.

• 9

• 13

• 20

• 21

Multiple Choice

Estimate the area of the green region in image by counting the number of filled squares.

• 36

• 18

• 30

• 24

Multiple Choice

Estimate the area of the shaded region in image by counting the number of filled squares.

• 40

• 64

• 24

• 48

Multiple Choice

Which of the following statements are true about the blue region in image 2?

• It covers more than half of the grid.

• It is a perfect square.

• It touches all four sides of the grid.

• It contains exactly 25 squares.

Multiple Choice

Estimate the area of the blue region in image by counting the number of filled squares.

• 34

• 30

• 29

• 24

Multiple Choice

Which formula would you use to find the area of the semicircle in the ice cream drawing?

• A = πr^2

• A = πr^2/2

• A = bh/2

• A = lw

Open Ended

Which room needs more carpeting and which needs more wallpaper: Room A or Room B?

Multiple Choice

How confident do you feel about calculating the area of composite figures after this lesson?

• Very confident

• Somewhat confident

• Not very confident

• Not at all confident