lesson 3 mi/vocab composite figure find the area of composite figures

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composite figure Find the area of composite figures.

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• composite figure

• Find the area of composite figures.

Find the Area of a Composite Figure

Find the area of the complex figure. Round to the nearest tenth.

The figure can be separated into two semicircles and a rectangle.

Find the Area of a Composite Figure

Answer: The area of the figure is about 28.3 + 72 or 100.3 square centimeters.

Area of semicircles Area of rectangle

A. A

B. B

C. C

D. D A B C D

0% 0%0%0%

A. 15.6 ft2

B. 16.2 ft2

C. 16.8 ft2

D. 17.1 ft2

Find the area of the complex figure. Round to the nearest tenth.

GARDENING The dimensions of a flower garden are shown. What is the area of the garden?

The garden can be separated into a rectangle and two congruent triangles.

Answer: The area of the garden is 35 + 5 + 5 or 45 square feet.

Area of rectangle Area of one triangle

1. A

2. B

3. C

4. D

0%0%0%0%

A B C D

A. 48 ft2

B. 56 ft2

C. 64 ft2

D. 70 ft2

GARDENING The dimensions of a flower garden are shown. What is the area of the garden?