Math Area of a Circle and Compound Shapes

What is the circumference of a circle with a radius of 10 inches?

• 31.4 inches
• 62.8 inches
• 100 inches
• 314 inches

A circular fountain has a drain in the center. The distance from the drain to the edge of the fountain is 3 feet. What is the approximate circumference of the fountain?

• 6 feet
• 9 feet
• 15 feet
• 18 feet

A ceiling fan is pictured above. The tip of one of the fan blades is labeled point A.  Point A is 28 inches away from the center of the fan. About how far does point A on the fan travel when the fan blades make one full revolution?

• 28 inches
• 56 inches
• 176 inches
• 88 inches

The Ferris wheel at the State Fair of Texas is 450 feet across.  How many feet would a person travel if they rode around the Ferris wheel 6 times?

• 1,413 feet
• 2,826 feet
• 8,478 feet
• 4,239 feet

A semicircle opening above the entrance at Six Flags has a diameter of 15 feet.  What is the area of this opening?  Round to the nearest tenth.

• 706.5 square feet
• 47.1 square feet
• 88.3 square feet
• 176.6 square feet

The diameter of a circular table is 24 inches.  How much cloth is needed to make a cover for the table?  Round to the nearest tenth.

• 452.2 square inches
• 75.4 square inches
• 1,808.6 square inches
• 37.7 square inches

Cindy has a jacket with the first letter of her school’s name on it. Determine the area of the letter on Cindy’s jacket.

• 24 square inches
• 44 square inches
• 60 square inches
• 28 square inches

The Cruz family is buying a custom-made cover for their swimming pool, shown above. The cover costs $2.95 per square foot. How much will the cover cost? Round to the nearest cent.

• $422.10
• $551.63
• $1,627.29
• $1,106.25

Find the area of the shaded region.

• 27.5 units squared

• 21.5 units squared

• 78.5 units squared

• 68.6 units squared

What is the circumference of a circle?

• 31.4 units

• 62.5 units

• 78.5 units

• 100 units