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 distance around a circle called?

Back

Circumference.

Front

If the diameter of a circle is 16, what is the radius?

Back

8 (Radius is half of the diameter).

Front

What is the formula for calculating the circumference of a circle?

Back

Circumference = π × diameter.

Front

If the radius of a circle is 10ft, what is the circumference?

Back

62.8ft (Circumference = 2 × π × radius).

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius.

Front

If the circumference of a circle is 43.98 cm, what is the diameter?

Back

14 cm (Diameter = Circumference / π).

Front

What is the value of π (pi) approximately?

Back

3.14.

Front

If a circle has a radius of 5 cm, what is its diameter?

Back

10 cm.

Front

What is the circumference of a circle with a diameter of 28 cm?

Back

87.96 cm.