Area and Circumference of Circles

Front

Find the diameter of the circle.

Back

14 m

Front

Find the radius of the circle.

Back

10 ft

Front

What does area mean?

Back

the amount of space inside a shape

Front

What is the formula for finding the area of a circle?

Back

Front

What is π ?

Back

The ratio of the circumference of any circle to its diameter.

Front

Equation to find fabric amount for a table with 5 ft diameter.

Back

A = π2.5²

Front

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

Back

c = 15π

Front

The circumference of the clock in Jason's room is 43.96 in. ^{What would you do to determine the diameter of the clock?}

Back

Divide the circumference by 𝜋.

Front

Formula for finding the area of a semi-circle

Back

A = π r² / 2