parts of a circle

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

• Radius
• Diameter

What is the diameter?

• 8
• 16
• 10
• 4

What is the radius?

• 18
• 72
• 38
• 14

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

• Radius
• Diameter

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

• radius
• diameter
• circumference
• area

A diameter is also a chord. 

• True
• False 

A line segment connecting any two points on a circle is called a _____________. 

• diameter
• chord
• radius
• circumference 

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