Circles

What is the Diameter of this Circle?

• 10.2

• 5.2

• 5.34

• 5.439

Find the Circumference of this Circle.

Use 3.14 for Pi

• 34.8

• 56

• 34.78

• 56.52

What is the Radius of this Circle?

• 23.5

• 12

• 24

• 34.5

What is the Radius of this Circle?

• 23,534.9

• 4.2

• 4.5

• 8.4

A dinner plate has a radius of 6 centimeters. What is the area? Use 3.14 for Pi

• 12.3

• 37.68

• 113.04

• 123

Use 3.14 for Pi

• 32

• 64

• 34.5

• 200.96

The students in Mrs. Serrano's preschool class sit down in a circle for music time. The circle they form has a diameter of 4 yards. What is the circle's circumference?

Use 3.14 for ​𝜋.

• 12.56

• 13

• 23.45

• 4

What is the equation for Circumference?

• C=2​𝜋r

• C=​𝜋r²

• ​𝜋

• 23

What is the equation for area?

• ​𝜋

• A=2​𝜋r

• 12

• A=​𝜋r²

The diameter of a bicycle wheel is 20 inches. What is the area of the wheel?

Use 3.14 for PI

• 314

• 10

• 3.14

• 20