Circumference Practice

Front

What is the diameter of a circle?

Back

The distance from an edge of a circle to another edge through the center.

Front

How do you calculate the circumference of a circle?

Back

Circumference = π × diameter.

Front

If the diameter of a circle is 21 feet, what is the circumference?

Back

65.94 feet.

Front

What is the radius of a circle?

Back

The distance from the center of the circle to an edge of the circle.

Front

If the diameter is 19 inches, what is the radius?

Back

9.5 inches.

Front

What is the circumference of a bowl with a diameter of 14 cm?

Back

43.98 cm.

Front

What is the value of π (pi) used in circumference calculations?

Back

Approximately 3.14.

Front

Calculate the circumference of a circle with a diameter of 10 cm. (Use 3.14 for pi)

Back

31.4 cm.

Front

What is the relationship between diameter and radius?

Back

Radius = Diameter / 2.

Front

If a circle has a circumference of 62.8 cm, what is its diameter?

Back

20 cm.