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) approximately?

Back

π is approximately 3.14.

Front

If the diameter of a circle is 10 meters, what is its circumference?

Back

31.4 meters.

Front

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

Back

Diameter = Circumference / π.

Front

What is the relationship between radius and diameter?

Back

Diameter = 2 × radius.

Front

If a circle has a circumference of 40.82 inches, what is its diameter?

Back

13 inches.

Front

What is the radius of a circle with a circumference of 59.66 feet?

Back

9.5 feet.

Front

How do you calculate the radius from the circumference?

Back

Radius = Circumference / (2 × π).

Front

What is the circumference of a bowl with a diameter of 14 cm?

Back

43.98 cm.

Front

If a circle has a circumference of 423.9 inches, what is its radius?

Back

67.5 inches.