Circles Angles Arcs and Chords

opposite angles in any quadrilateral inscribed in a circle are __________ of each other.

• complements

• supplements

• congruent

• opposite

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

Segments with endpoints on a circle are called _____.

• arcs

• radii

• chords

• polygons

Find the value of x.

• 15

• 13

• 3

• 6

inscribed angle: an angle with its vertex _____________ the circle

• at the center of

• on

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

What is the radius?

• 18

• 72

• 38

• 14