Circles Review

What is the radius of this circle?

• 12

• 6

• 24

What is the area of this circle?

• 163.2

• 15.3

• 124.2

• 113.1

What is the radius of this circle?

• 20

• 10

• 40

What is the area of this circle?

• 1256.64

• 31.41

• 314.16

• 123.12

What is the radius of this circle?

• 140

• 35

• 70

What is the area of this circle?

• 15393.8

• 1248.12

• 5930.12

• 3848.45

What is the area of this circle?

• 62.59

• 113.1

• 19.81

• 28.27

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

What is the diameter?

• 8

• 16

• 10

• 4