Circumference

Front

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

Back

Circumference = π × diameter or Circumference = 2 × π × radius.

Front

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

Back

3.14.

Front

If a circle has a diameter of 6.8 m, what is its circumference?

Back

21.4 m.

Front

If a circle has a radius of 9 mi, what is its circumference?

Back

56.5 mi.

Front

If a circle has a radius of 5.8 cm, what is its circumference?

Back

36.4 cm.

Front

How do you find the radius of a circle if you know the circumference?

Back

Radius = Circumference / (2 × π).

Front

What is the circumference of a circle with a diameter of 14.8 m?

Back

46.5 m.

Front

What is the relationship between diameter and radius?

Back

Diameter = 2 × radius.

Front

If the circumference of a circle is 12.6 mi, what is the radius?

Back

2 mi.

Front

What is the circumference of a circle with a radius of 4 cm?

Back

25.12 cm.