Choosing Circumference or Area

A group of students stood in a circle to play a game. The circle had a diameter of 13 meters. Which measurement is closest to the circumference of the circle in meters? 

Stephanie painted a circular plate in potter class. The circumference of her plate is 3π units. What is the area of her plate?

What is the area of the circle?

• 15.7 cm²

• 78.5 cm²

• 31.4 cm²

• 5 cm²

What is the circumference of the circle?

• 25.12 in.

• 12.56 in.

• 50.24 in.

Find the area of the circle below.

• 100 cm²

• 225 cm²

• 9 cm²

• 28.26 cm²

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.26 m²

What is the formula for CIRCUMFERENCE of a circle?

• C=πd

• C=πd²

• A=πr²

• C=πβγΔ

What is Circumference?

• π

• The distance around the outside of a circle

• The amount of space on the inside of a circle

Steven purchases a bowl. The diameter of the

bowl is 14 cm. What is the distance around the bowl?

• 21.98 cm

• 43.96 cm

• 87.96 cm

• 7 cm

The perimeter of a circle is usually called the...

• radius

• diameter

• circumference

• area