Circumference and Area of a Circle

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

• 56.52

• 254.34

• 1017.36

• 113.04

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

• 131.9 cm

• 121.9 cm

• 111.9 cm

• 141.9 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 circle with a radius of 3 cm?

• 18.9 sq. cm

• 28.3 cm

• 18.9 cm

• 28.3 sq. cm

Brian made a tasty burger. The diameter of the
burger was 5 cm. What is the radius of the circle?

• 15.7 cm

• 10 cm

• 2.5 cm

• 31.4 cm

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm

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