Circumference

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Tags

CCSS.7.G.B.4

What does d represent in the formula:

C = π·d

• diameter

• radius

• pi

• 3.14

Tags

CCSS.7.G.B.4

What is the circumference of a circle?

• the distance around a circle

• the area of a circle

• halfway through a circle

• a line through the center of a circle

What number represents π?

• 31.4

• 4.13

• 3.14

• 34.1

Tags

CCSS.HSG.GMD.A.1

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

Determine the radius of the penny

• 59.66 mm

• 9.5 mm

• 38 mm

• 119.32 mm

Tags

CCSS.7.G.B.4

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

If my radius is 2 yd what is the circumference?

• 4 yd

• 1 yd

• 12.56 yd

• 6.28 yd

Tags

CCSS.7.G.B.4

If my diameter is 90cm, what is my circumference?

• 282.6cm

• 180 cm

• 90cm

• 565.2cm

Tags

CCSS.7.G.B.4

What is the circumference?

• 50.24

• 96

• 24

• 18

Tags

CCSS.7.G.B.4