Protractor Diameter Radius

The diameter is 6. What is the radius?

• 12

• 3

• 36

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

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

• radius

• diameter

• circumference

• area

The distance across the circle through the center is called the...

• radius

• diameter

• circumference

• area

The distance all the way across the circle is called the...

• radius

• diameter

• circumference

• area

A straight line from the center of a circle to the circumference is called the ____.

• Diameter

• Circumference

• Radius

• Area

A straight line segment that passes through the center of a circle and whose endpoints lie on the circumference of the circle is called the ____.

• Diameter

• Radius

• Circumference

• Area

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

• 38 m

• 35 m

• 90 m

• 140 m