Circumference of a Circle

Front

What is the formula to calculate the circumference of a circle?

Back

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

Tags

CCSS.7.G.B.4

Front

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

Back

3.14.

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

31.4 ft.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Radius is half of the diameter.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 7 inches?

Back

43.96 in.

Tags

CCSS.7.G.B.4

Front

What does circumference measure?

Back

The distance around a circle.

Front

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

Back

20 feet.

Tags

CCSS.7.G.B.4

Front

What is the diameter of a circle with a circumference of 31.4 inches?

Back

10 inches.

Tags

CCSS.7.G.B.4

Front

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

Back

Radius = Circumference / (2 × π).

Tags

CCSS.7.G.B.4

Front

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

Back

37.68 ft.

Tags

CCSS.7.G.B.4