Circumference

Front

What does 'circumference' mean?

Back

Distance around a circle.

Front

What is the diameter of a circle?

Back

The longest distance across a circle, passing through the center.

Front

What is the radius of a circle?

Back

The distance from the center of the circle to any point on its edge.

Front

Does this picture show the diameter or radius of a circle?

Back

Diameter.

Front

Find the circumference of a circle with a radius of 7 cm.

Back

43.96 cm.

Front

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

Back

Circumference = 2 × π × radius.

Front

What is π (pi)?

Back

A mathematical constant approximately equal to 3.14, used in calculations involving circles.

Front

If the diameter of a circle is 10 cm, what is the radius?

Back

5 cm.

Front

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

Back

Diameter = Circumference ÷ π.

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius.