Lines and Centers of Circles

Which line segment represents the diameter of the circle?

• PQ

• AO

• AB

• OC

Which line segment represents the radius of the circle? 

• WM

• MZ

• XM

• All of the above

What is the correct definition of a center of a circle?

• A shape with no sides

• The set of points in a plane that are fixed distance from a given point

• The middle of a circle

The Radius of a circle is...

• The middle of the circle

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

• A segment whose endpoints are the center of a circle and a point on the circle

• A line going through a circle

Which best describes line AB?

• chord

• secant

• tangent

• diameter

Which best describes line AB?

• chord

• secant

• tangent

• diameter

What is the definition for a diameter?

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

• A line going through a circle

• A segment whose endpoints are the center of a circle and a point on the circle

• Another word for diagram

A secant is...

• Two parallel lines going through a circle

• A line going through the circle

• Three lines going through a circle

• A line that intersects a circle at two points

Central Angle is ...

• An angle whose vertex is the center of a circle

• An angle whose vertex is on a circle and whose sides contain chords of the circle.

• An obtuse angle inside a circle

• The angle measure of the central angle is 1/2 of the intercepted are.

Tags

CCSS.HSG.C.A.2

The diagram was constructed with straightedge and compass tools. A is the center of one circle, and C is the center of the other. Select all line segments that must have the same length as segment AB