Circle Real World Problems

A circular pie has an area of 706.5 cm². What is the radius of the pie?

• 225 cm

• 30 cm

• 15 cm

• 112.5 cm

The circle represents a tablecloth that Angie bought. She wants to sew fringe along the edge of the tablecloth. How many of fringe does she need to buy? Use 3.14 for π.

• 12.4 ft

• 7.9 ft

• 19.6 ft

• 15.7 ft

Alejandra is making a tablecloth. Her table has a 7 foot diameter. How many square feet of material does she need to use? Use 3.14 for π.

• 10.9 square feet

• 153.9 square feet

• 38.5 square feet

• 21.9 square feet

The circumference of a circle is 36.31 meters. What is the approximate length of the radius? Use 3.14 for π.

• 3 m

• 4 m

• 5 m

• 6 m

Mrs VanSciver bought a circular rug. The radius of the rug was 2.5 feet. How does the diameter of the rug compare to the radius? Use 3.14 for π.

• The diameter of the rug is twice the radius.

• The radius is twice the circumference.

• The diameter of the rug is half the radius.

• The diameter is twice the circumference.

Paige wants to sew lace around the edge of a round tablecloth. The table cloth has a diameter of 6 feet. About how much lace will Paige need?

• 18.85 feet

• 113.10 feet

• 9.42 feet

• 28.27 feet

• 15

• 29

• 46

• 93

Mario ordered a pizza that had a diameter of 14 inches. What is the approximate area of the pizza?

• 22 in^.2

• 44 in^.2

• 154 in^.2

• 616 in^.2

Jalen is making a circular pizza with a circumference of 44 inches. What is the approximate radius of Jalen's pizza. Use 3.14 for pi.

• 14 inches

• 7 inches

• 22 inches

• 88 inches

A round table has a radius of 15 in. A round tablecloth hangs 2 in. over the edge of the entire table. What is the approximate area of the tablecloth?

• 107 in²

• 707 in²

• 908 in²

• 1,134 in²