Area of a Circle

What is the area of a circle with a radius of 21 cm?

• 1384.74 cm²

• 2142.12 cm²

• 4348.08 cm²

• 1289.12 cm²

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 163.2

• 15.3

• 124.2

• 113.1

Tags

CCSS.7.G.B.4

Ms. Catall is using a compass to find her way out of the woods. The compass has a radius of 4 centimeters. What is the compass's area?

• 49.2 cm²

• 45.6 cm²

• 50.24 cm²

• 55.9 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 176.6 cm²

• 706.5 cm²

• 23.6 cm²

• 50.24 cm²

Tags

CCSS.7.G.B.4

What does A represent in the formula:

A = π·r²

• Area

• Radius

• Pi

• Diameter

Tags

CCSS.7.G.B.4

What does r represent in the formula:

A = π·r²

• circumference

• radius

• diameter

• squared

Tags

CCSS.7.G.B.4

What is the area of a circle?

• halfway through a circle

• a line through the center of a circle

• the amount of space inside of the circle

• the distance around a circle

Find the area of the circle.

• 18.84 m²

• 113.04 m²

• 37.68 m²

• 452.16 m²

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 12.56 cm²

• 25.12 cm²

• 50.24 cm²

• 200.96 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle.

• 803.84 cm²

• 25.12 cm²

• 50.24 cm²

• 200.96 cm²

Tags

CCSS.7.G.B.4