Circles, Area, and Surface Area Review

Circumference & Area

100

Find the radius of a circle with a diameter of 32 inches.

16 inches

200

A circle has a radius of 8cm. Find the circumference of the circle. Round to the nearest thousandth.

50.265 cm

300

A circle has an area of 428 square inches. Find the diameter. Round your answer to the nearest hundredth.

23.34 inches

400

Vincent is designing a logo for his new soccer jersey. The logo consists of a soccer ball where the perimeter measures 64 inches. Find how much space Vincent needs to cover inside the logo. Round to the nearest whole number.

326 square inches

500

In Central Park, the sprinkler system covers 256 square inches of land. Determine the circumference of the park. Round your answer to the nearest hundredth.

56.72 inches

Shaded Region

100

Find the area of the shaded region (google slides)

236 square cm

200

The Rock Solid Concrete Company has been asked to pave a rectangular area surrounding a circular fountain with a diameter of 8 feet, as shown in the diagram. Find the area to the nearest square foot. (google slides)

490 square feet

300

In the diagram below of rectangle AFEB and a semicircle with diameter CD, AB = 5 inches, AB = BC = DE = FE, and CD = 6 inches. Find the area of the shaded region, to the nearest hundredth of a square inch. (google slides)

65.86 square inches

400

Find the area of the shaded region. ( google slides)

72 m

500

Determine the area of the shaded region (google slide)

452.4 square centimeters

Area of Composite Shapes

100

Find the area of the following figure. Round to the nearest whole number (google slides)

89 square yards

200

A photo frame is shown below with its dimensions. If the glass portion only covers the picture inside of the frame, what is the area of a piece of replacement glass?(google classroom)

198 cm²

300

A hotel is building a heart-shaped pool. Find the area of the pool. Use 3.14 for π. Round to the nearest tenth (google slides)

2378.1 m²

400

Find the area of the following figure. (google slides)

55.3 square meters

500

What is the area of this figure, to the nearest square centimeter? (google classroom)

37 cm²

Perimeter of Composite Shapes

100

The perimeter of a square is 48 inches. What is the length of one of the sides of the square?

12 inches

200

The lengths of the sides of home plate in a baseball field are represented by the expressions in the accompanying figure. In simplest form, write an expression that represents the perimeter (google slides)

2x + 2y +yz

300

Find the perimeter of the composite figure (google slides)

48 m

400

Find the perimeter of the composite figure (google slides)

314 mm

500

Find the perimeter of composite shapes (google slides)

500 m

Mixed Review

100

The Jones family wants to enclose their circular garden with a fence. From the center of the garden to the fence measures 62.5 ft. To the nearest foot, what is the minimum length of fencing they need to buy?

393 ft

200

What is the area of a semicircle that has a radius of 8 ft?

100.53 ft²

300

What is the area of the shaded region?

66 cm²

400

What is the area of the composite figure? (google slide)

51.5 ft²

500

if A is the area and C the circumference of a circle, write an equation for A in terms of C?

C²/4pi