Chords Segments Tangents Circle

In a circle, if a diameter is is perpendicular to a chord, then:

• it bisects the chord

• it bisects the corresponding arc

• it bisects BOTH the chord and its arc

• none of these answers are correct

In a circle, if a diameter bisects a chord (that is not a diameter), then:

• it is a secant

• it is parallel to the chord

• it is perpendicular to the chord

• it is just shaking out the sillies

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

Tags

CCSS.HSG.C.A.2

Segments with endpoints on a circle are called _____.

• arcs

• radii

• chords

• polygons

Using lines tangent to the circle, find the value of x.

• 57

• 137

• 47

• 257

Tags

CCSS.HSG.C.A.2

Which is secant?

Find the radius r

• 2

• 3

• 4

• 5

Tags

CCSS.HSG.C.A.2

In the diagram, TP and TQ are tangents to circle O. Determine the value of x. (Note the angles with single arcs are not necessarily congruent in this diagram.)

• 70

• 110

• 140

• 90

Tags

CCSS.HSG.C.A.2

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

A tangent line intersecting with a radius always creates a ____________ angle

• right

• acute

• obtuse

• straight