Identify Diameter Radius

What is the formula for Circumference of a circle?

• C= π d

• C= π r

• C= 2(π d)

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 37.68

• 18.84

• 452.16

Tags

CCSS.7.G.B.4

The particle accelerator at Fermilab has a radius of 0.62 miles. How long is it all the way around the particle accelerator? Round to nearest tenth.

Tags

CCSS.7.G.B.4

The distance from the center of the circle to any point on the circle is called the...

• radius

• diameter

• area

• circumference

If the radius of a circle is 8 cm, the diameter is 16 cm.

• TRUE

• FALSE

Tags

CCSS.7.G.B.4

If the diameter of a circle is 10 cm, the radius is 5 cm.

• TRUE

• FALSE

Tags

CCSS.7.G.B.4

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

• 20ft

• 5ft

• 31.4ft

• 62.8ft

Tags

CCSS.7.G.B.4

A circle has a diameter of 36 ft. What is the radius?

• 18

• 72

• 14

Tags

CCSS.7.G.B.4

What is the diameter of a circle if the radius is 8 cm?

• 8 cm

• 16 cm

• 4 cm

Tags

CCSS.7.G.B.4

Find the radius of a circle who's diameter is 40 ft.

• 40ft

• 80ft

• 20ft

• 45ft

Tags

CCSS.7.G.B.4