Circle Geometry Quiz

How many radii (plural of radius) are in a circle?

• One

• Two

• Infinite

Which part of a circle is the circumference?

• The distance around the outside of the circle

• A line through the center

• Half of the circle

What is the center of a circle?

• The curved line that forms the circle

• The point inside the circle that is the same distance from every point on the circle

• The distance around the circle

What is a diameter?

• Half of a circle

• The area inside the circle

• A line segment that passes through the center and has endpoints on the circle

What is the relationship between a radius and a diameter?

• They are the same length

• The diameter is twice the length of the radius

• There is no relationship between them