Parts of a Circle
Find the Radius
Find the Diameter
What is the circumference?
What is the Area?
100

3.14

What is pi?

100

The diameter of this circle is 5.

What is 2.5?

100

The radius of this circle is 5.

What is 10?

100

The diameter of this circle is 10.

What is 31.4?

100

The radius of this circle is 7.

What is 153.86?

200

The distance from the center of a circle to the outside; half of the diameter.

What is the radius?

200

The diameter of this circle is 12.

What is 6?

200

The radius of this circle is 46.7

What is 93.4?

200

The diameter of this circle is 13.67.

What is 42.92?

200

The radius of this circle is 21.

What is 1384.74?

300

The longest chord in a circle

What is the Diameter?

300

The circumference of this circle is 314.

What is 50?

300

The circumference of this circle is 15.7

What is 5?

300

The radius of this circle is 25.

What is 157?

300

The diameter of this circle is 12.

What is 113.04?

400

The perimeter of a circle.

What is the circumference?

400

The circumference of this circle is 23.4.

What is 3.73?

400

The circumference of this circle is 103.62.

What is 33?

400

The radius of this circle is 2.36.

What is 14.82?

400

The diameter of this circle is 2.1.

What is 3.46?

500

A line through the circle.

What is a chord?

500

The area of this circle is 78.5.

What is 5?

500

The area of this circle is 200.96.

What is 16?

500

The area of this circle is 50.24.

What is 25.12?

500

The circumference of this circle is 15.7.

What is 19.63?