Area and Circumference Review

What is the area of this circle?

• 163.2

• 15.3

• 124.2

• 113.1

Find the Circumference (round to nearest tenth):
diameter = 12 in.

• 37.7 in.

• 37 in.

• 38 in.

• 75.4 in.

Find the Circumference (round to nearest tenth):
diameter = 5 km

• 15.6 km

• 15 km

• 15.7 km

• 31.4 km

Find the Circumference (round to nearest tenth):
radius = 6 cm

• 37.7 cm

• 37.8 cm

• 37 cm

• 18.8 cm

• F
• G
• H
• J

Determine the circumference of a circle with a radius of 7 cm. Round to the nearest hundredth.

• 43.96 cm

• 14.96 cm

• 28.98 cm

• 21.98 cm

A circular mirror has a 2 inch frame around it. The mirror itself is 8 inches in diameter. What is the area of the frame? Use 3.14 for pi.

Find the circumference of the the circular pool.

• 14ft

• 7ft

• 43.96ft

• 21.98ft

Identify the parts of the circle and show how you would find the area and circumference.

Groups:

(a) radius

,

(b) diameter

,

(c) circumference

,

(d) area