Circumference of a Circle

Front

What is the diameter of a circle?

Back

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

Front

What is the formula for the circumference of a circle?

Back

Circumference = π x diameter.

Front

What does the symbol π represent?

Back

Pi, a mathematical constant approximately equal to 3.14.

Front

If a circle has a diameter of 10 inches, what is its circumference?

Back

31.4 inches (Circumference = π x 10).

Front

What is the radius of a circle?

Back

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

Front

How do you find the diameter if you know the radius?

Back

Diameter = 2 x radius.

Front

What is the circumference of a circle with a diameter of 17 inches?

Back

53.38 inches (Circumference = π x 17).

Front

If the circumference of a circle is 18.84, what is the diameter?

Back

Diameter = 6 (Circumference = π x diameter).

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the length of the radius.

Front

What is the approximate value of π?

Back

Approximately 3.14.