Circumference of a Circle

Front

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

Back

diameter

Tags

CCSS.7.G.B.4

Front

If my radius is 10ft, what is my diameter?

Back

20ft

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

What is the circumference of a circle?

Back

The measurement around the circle.

Front

What is the radius of a penny if its diameter is 19 mm?

Back

9.5 mm

Tags

CCSS.7.G.B.4

Front

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

Back

C = π·d or C = 2·π·r

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

What is the relationship between diameter and radius?

Back

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

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 radius if you know the circumference?

Back

r = C / (2·π)

Tags

CCSS.7.G.B.4