Radius vs. Diameter

Is this line the Radius or Diameter?

• Radius

• Diameter

To go from radius to diameter I need to do what?

• divide by 2

• multiply by 2

• multiply by 3.14

• divide by 3.14

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

Determine the radius of the penny

• 59.66 mm

• 9.5 mm

• 38 mm

• 119.32 mm

Tags

CCSS.7.G.B.4

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.

• The measurement around the circle

• The measurement from and edge of the circle to another edge through the center

• A line perpendicular to the diameter of the circle

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

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

The distance halfway across the circle is called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.HSG.C.A.2

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

• radius

• diameter

• area

• circumference