Circumference

Front

What is the value of π (pi) to two decimal places?

Back

3.14

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

C = πd or C = 2πr, where C is circumference, d is diameter, and r is radius.

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is 31.4 cm, what is the diameter?

Back

10 cm

Tags

CCSS.7.G.B.4

Front

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

Back

Use the formula C = 2πr.

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and circumference?

Back

The circumference is π times the diameter.

Tags

CCSS.7.G.B.4

Front

If a circle has a circumference of 157 cm, what is the approximate diameter?

Back

50 cm.

Tags

CCSS.7.G.B.4

Front

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

Back

31.4 cm.

Tags

CCSS.7.G.B.4

Front

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

Back

Use the formula r = C/(2π).

Tags

CCSS.7.G.B.4

Front

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

Back

43.96 cm.

Tags

CCSS.7.G.B.4

Front

If the circumference of a circle is 21.98 cm, what is the radius?

Back

Approximately 3.5 cm.

Tags

CCSS.7.G.B.4