Circumference and Area of a Circle

The radius of the circle is 9 meters.  What is the circle's circumference?

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

What is the circumference of this circle?  Round to the nearest tenth.

• 3.14 cm 

• 37.7 cm

• 24 cm

• 68.4 cm

If the diameter of a circle is 10 mm, the circumference is approximately ___

• 314 mm

• 3.14 mm

• 31.4 mm

• 20 mm

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

Find the area of the circle

• 56.52

• 254.34

• 1017.36

• 113.04

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

Find the circumference of a circle with a radius of 13.5 mm.

• 37.68mm

• 18.84mm

• 84.78 mm

• none of the above

What is the circumference of a 12-inch pizza?

• 37.68 inches

• 18.84 inches

• 113.04 inches

• 432.16 inches

what is the area of this semicircle ?

d = 8 cm

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

Solve.

• 78.5 cm²

• 100 cm²

• 21.5 cm²

• 121.5 cm²