Area of a Circle

​square units

Match

Match the following formulas

• Circumference using diameter

• Circumference using radius

• Area of a circle

C = π d

C = 2 π r

A = π r ²

• C = π d

• C = 2 π r

• A = π r ²

Match

Use the circle to match the following

• Diameter

• Radius

• Pi

10

5

3.14

• 10

• 5

• 3.14

Multiple Choice

Brain Break:

Who is this

• Frosty

• Olaf

• Meltin John

• Mr. McChilly

Multiple Choice

Find the area of the circle

• 126.32

• 36.45

• 254

• 113.04

Multiple Choice

Find the area

• 25.14

• 78.5

• 36.4

• 94.3

Multiple Choice

Find the area

• 183.12

• 38.2

• 184.3

• 153.86