Circumference, Radius, and Diameter

Front

What number represents π?

Back

3.14

Tags

CCSS.HSG.GMD.A.1

Front

A straight line from the center of a circle to the circumference is called the ____.

Back

Radius

Front

A straight line segment that passes through the center of a circle and whose endpoints lie on the circumference of the circle is called the ____.

Back

Diameter

Tags

CCSS.HSG.C.A.2

Front

Is this Radius or Diameter? (Image of a radius)

Back

Radius

Front

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

Back

diameter

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

What is the relationship between radius and diameter?

Back

Diameter = 2 × Radius

Tags

CCSS.7.G.B.4

Front

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

Back

10 cm

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 14 cm, what is the radius?

Back

7 cm

Tags

CCSS.7.G.B.4

Front

What is the circumference of a circle with a radius of 3 cm? (Use π = 3.14)

Back

C = 2·π·r = 2·3.14·3 = 18.84 cm

Tags

CCSS.7.G.B.4