Radius and Diameter

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

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

The diameter of a circle is:

• The measurement around the circle.
• The distance from an edge of a circle to another edge.
• The distance from the center of the circle to an edge of a circle
• The distance from an edge of a circle to another edge through the center. 

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.4.G.A.1

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

What is the radius?

• 18
• 72
• 38
• 14

Tags

CCSS.7.G.B.4

What is the radius?

What is the diameter?

What is the radius of a circle when the diameter is 70 m?

What is the diameter of a circle when the measure of its radii is 24 m?