All Angles and Arcs in a 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

Find the measure of Arc BC.

Find the value of x.

Find the value of x.

Identify all of the minor arcs

(there can be more than one answer - 3)

• Arc CH

• Arc FCH

• Arc FG

• Arc GHF

• Arc HGF

Identify the semicircles of this figure. (there may be more than one answer)

• Arc AB

• Arc AD

• Arc BAD

• Arc BDC

• Arc ABC

In the formula for arc length, the x represents...

• the arc length

• the radius

• the circumference

• the central angle