Circumference of Circles

Front

What is the formula for the circumference of a circle?

Back

C = π·d or C = 2·π·r

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 5ft, what is the diameter?

Back

10ft

Tags

CCSS.7.G.B.4

Front

What does the radius of a circle represent?

Back

The distance from the center of the circle to any point on its circumference.

Front

If the diameter of a circle is 24 inches, what is the radius?

Back

12 inches

Tags

CCSS.7.G.B.4

Front

What is the value of π (pi) approximately?

Back

3.14

Tags

CCSS.HSG.GMD.A.1

Front

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

Back

10ft

Tags

CCSS.7.G.B.4

Front

What does 'C' represent in the formula C = π·d?

Back

Circumference

Tags

CCSS.7.G.B.4

Front

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

Back

31.4cm

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

Diameter is twice the radius (d = 2·r).

Tags

CCSS.7.G.B.4

Front

If a circle has a circumference of 62.8 inches, what is its radius?

Back

10 inches

Tags

CCSS.7.G.B.4