Areas of Circles and Sectors and Composite Figures.

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Presentation transcript:

Areas of Circles and Sectors and Composite Figures

Area of a Circle MANUFACTURING An outdoor accessories company manufactures circular covers for outdoor umbrellas. If the cover is 8 inches longer than the umbrella on each side, find the area of the cover in square inches.

A.62.8 ft 2 B ft 2 C ft 2 D ft 2 A swimming pool company manufactures circular covers for above ground pools. If the cover is 1 foot longer than the pool on each side, find the area of the cover.

Use the Area of a Circle to Find a Missing Measure ALGEBRA Find the radius of a circle with an area of 58 square inches. Answer:The radius of the circle is about 4.3 in.

A.3.8 in. B.4.5 in. C.5.7 in. D.7.6 in. ALGEBRA Find the radius of a circle with an area of 45 square inches.

Area of a Sector PIE A pie has a diameter of 9 inches and is cut into 10 congruent slices. What is the area of one slice to the nearest hundredth?

A in 2 B in 2 C in 2 D in 2 PIZZA A pizza has a diameter of 14 inches and is cut into 8 congruent slices. What is the area of one slice.

Find the Area of a Composite Figure by Adding POOL The dimensions of an irregularly shaped pool are shown. What is the area of the surface of the pool?

A ft 2 B ft 2 C ft 2 D ft 2 Find the area of the figure in square feet. Round to the nearest tenth if necessary.

Find the Area of a Composite Figure by Subtracting Find the area of the shaded figure.

A.168 ft 2 B.156 ft 2 C.204 ft 2 D.180 ft 2 INTERIOR DESIGN Alina wants to wallpaper one wall of her family room. She has a fireplace in the center of the wall. Find the area of the wall around the fireplace.