Circles Vocabulary Review

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

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. 

Point C is...

• On the circle
• Outside the circle
• Inside the circle
• Between B and D

A tangent line of a circle is...

• It's diameter
• It's radius
• It's circumference
• A line that touches the circle only once

How many degrees are in a cirlce?

• 90
• 180
• 270
• 360

How many degrees are in a semicircle?

• 90
• 180
• 270
• 360

A segment whose endpoints lie on a circle is a _______.

• tangent
• chord
• diameter
• secant

An angle whose vertex is on a circle and whose sides contains chords of the circle is _______

• an inscribed angle
• a central angle
• an obtuse angle
• a semicircle

A line that intersects a circle at two points is a ______________.

• tangent
• secant
• diameter
• chord

An angle whose vertex is the center of a circle is a(n) ______.

• inscribed angle
• acute angle
• obtuse angle
• central angle