Circumference and Area

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

A Circle has a radius of 4.  What is the area of the circle? (Best Choice) (note: units are squared)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

Find the area of the circle below.

• 113.04 cm units²

• 18.84 cm units²

• 9 cm units²

• 28.26 cm units²

What is the diameter of this circle?

• 3.5

• 6.5

• 6

• 7

What is the radius of this circle?

• 18

• 36

• 9

• 6

Find the circumference of the circle

• 21.98

• 153.86

• 43.96

• 615.44

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Steven purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?

• 28 cm

• 43.96 cm

• 87.96 cm

• 7 cm