Area of Circles and Squares

What is the area of this circle?

• 6,079.04 ft

• 138.16 ft

• 69.08 ft

• 1,519.76 ft

Daniel has a circular rug that has a diameter of 16 inches. How much space does the rug take up?

• 200.96 in

• 50.24 in

• 803.84 in

• 25.12 in

Find the area. Round your answer to the nearest tenth.

• 62.9 in

• 31.4 in

• 1256.6 in²

• 314.2 in²

• 78.5 square metres

• 79 square metres

• 80.5 square metres

• 81 square metres

• 153.86 square metres

• 154 square metres

• 155.86 square metres

• 156 square metres

A dog is tied to a wooden stake in a backyard. His leash is 3 meters long and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?

• 113.04 square meters

• 9.42 square meters

• 18.84 square meters

• 28.26 square meters

A square pool with an area of 81 square feet is to be

placed entirely within a circular enclosure with a radius

of 10 feet. Tiles will be laid within the entire enclosure

around the pool (but not under it). What is the approximate

area, in square feet, of the enclosure that will be

tiled?

• 81

• 233

• 315

• 396

• Cannot be determined without knowing the exact placement of the pool

Rocky has a choice between 2 pizzas: a circular pizza with a 10-inch diameter, and a square pizza with a 9-inch side. Which statement below is true?

• The pizzas have the same area.

• The area of the square pizza is larger.

• The area of the circular pizza is larger.

• The area of the circular pizza is 100 square inches.

A circular disc is cut from a piece of square plastic.  How much plastic is left over? The side length of the piece of plastic is 15 inches. 

• 47.1 in.²

• 48.37 in.²

• 225 in²

• 176.37in.²

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00