Chords and Circles

Name a chord.

• Segment XC

• Segment KM

• Segment HJ

• LINE BD

In a circle (or congruent circles), chords that are the same distance from the center:

• are similar

• have the same name

• are congruent to each other

• are walking dead

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?"

• -15

• 6

• 15

• 14

Find the radius r

• 2

• 3

• 4

• 5

Name a major arc in circle O.

• AB

• CDA

• CB

• CBA

A segment whose endpoints are the center and any point on the circle

• radius

• diameter

• chord

• tangent

An arc with a central angle measure of exactly 180^o

• major arc

• diameter

• radius

• semicircle

Set of all points in the plane equidistant from a single point called the center

• circle

• chord

• polygon

• radius

A line in the same plane as a circle that intersects the circle at exactly one point is a ____________.

• tangent

• secant

• chord

• radius