Circles Chords Tangents Arcs Angles

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

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

Segment AB and AC are​ (a)   to the circle and​ (b)   to each other.

• tangents

• congruent

• secants

• chords

• unequal

• similar

Find the measure of angle MNQ.

• 89

• 158

• 91

• 22

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

• 57

• 137

• 47

• 257

Find the value of x.

Which is the correct way to solve this?

• x=(360-110)/2

• x=110/2

• x=(250-110)/2

• x=(250+110)/2

Which best describes segment AB? (a)  

• chord

• secant

• tangent

• diameter

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

• right

• acute

• obtuse

• straight