Area and Circumference of Circles Practice

Find the area of the circle, round to nearest tenth:
r = 12 in

• 452.2 in²

• 45.2 in²

• 113.0 in

• 450 in²

Find the area of the circle, round to nearest tenth:
r = 15 cm

• 70.65 cm²

• 706.5 cm²

• 176.6 cm²

• 705 cm²

Find the area of the circle, round to nearest tenth:
r = 5 m

• 7.85 m²

• 19.6 m²

• 78.5 m²

• 77 m²

Find the area of the circle, round to nearest tenth:
r = 2.6 ft

• 2.12 ft²

• 22 ft²

• 5.3 ft²

• 21.2 ft²

Match the following definitions to the terms:

• How much space a circle takes up

• Circumference of a circle

• feet, cm, inches

• Area of a circle

• square units (units²)

• Units of circumference

• The distance around a circle

• Units of area

A baker is making a giant pizza with a diameter of 42 inches. a large jar of tomato sauce can cover 90 square inches of pizza. How many jars of tomato sauce does the baker need to buy to cover all the pizza?

Mathematical Equivalence

ON

Find the area of the circle, round to nearest tenth:
r = 7 mm

• 15.39 mm²

• 153.9 mm²

• 38.5 mm²

• 155 mm²

Find the area of the circle, round to nearest tenth:
d = 9 cm

• 63.6 cm²

• 6.36 cm²

• 65 cm²

• 254.3 cm²

Find the area of the circle, round to nearest tenth:
d = 5 yd

• 96 yd²

• 19.6 yd²

• 78.5 yd²

• 20 yd²

Find the area of the circle, round to nearest tenth:
r = 18 yd

• 1017.4 yd²

• 10.174 yd²

• 1020 yd²

• 254.3 yd²