Circumference

Front

What is the circumference of a circle?

Back

The circumference is the distance around the circle.

Front

What is the value of π (pi)?

Back

π (pi) is approximately 3.14.

Front

What is the formula for the circumference of a circle using the diameter?

Back

C = π x Diameter.

Front

How do you calculate the circumference if you know the radius?

Back

C = 2 x π x radius.

Front

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

Back

C = π x 10 cm ≈ 31.4 cm.

Front

What is the relationship between diameter and radius?

Back

The radius is half of the diameter.

Front

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

Back

Diameter = C / π ≈ 20 cm.

Front

What is the circumference of a circle with a radius of 5 cm?

Back

C = 2 x π x 5 cm ≈ 31.4 cm.

Front

What is the circumference of a circle with a diameter of 12 inches?

Back

C = π x 12 inches ≈ 37.68 inches.

Front

What does the term 'circumference' refer to in geometry?

Back

Circumference refers to the perimeter or boundary line of a circle.