Circumference of a Circle

Front

What is the circumference of a circle?

Back

The measurement around the circle.

Front

If the diameter of a circle is 3 centimeters, what is the circumference?

Back

9.42 cm.

Tags

CCSS.7.G.B.4

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

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

Back

20ft.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Diameter is twice the radius.

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is 78.5cm, what is the radius?

Back

12.5cm.

Tags

CCSS.7.G.B.4

Front

What is π (pi) approximately equal to?

Back

3.14.

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

Use the formula: Circumference = 2 × π × radius.

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a diameter of 10cm?

Back

31.4cm.

Tags

CCSS.7.G.B.4

Front

If a circle has a circumference of 63.56 cm, what is its diameter?

Back

20.2cm.

Tags

CCSS.7.G.B.4