Chords and Circles

Segments with endpoints on a circle are called _____.

• arcs

• radii

• chords

• polygons

In a circle (or congruent circles), the measure of an arc is:

• equal to half of the measure of its corresponding central angle

• equal to the measure of its corresponding central angle

• equal to the measure of its circle's radii

• only calculated by taking the square root of dragon taxis

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

Which best describes segment AB?

• chord

• secant

• tangent

• diameter

What is the measure of ∠PTQ?

• 100°

• 140°

• 180°

• 120°

A ____ is a line, ray, or segment that intersects a circle at two points.

• Tangent

• Secant

• Radius

• Arc

A(n) _____ to a circle is a line, ray or segment in the plane of the circle that intersects the circle in exactly one point.

• tangent

• secant

• radius

• arc

What is x?

• 15

• 23

• 2

• 92

In a circle (or congruent circles), congruent arcs:

• have congruent chords

• have congruent points

• are twice the measure of their radii

• can climb a hippo

Find the radius r

• 2

• 3

• 4

• 5