Circle Chords Secants and Tangents Line Segments

Determine the measure of Arc BA.

• A

• B

• C

• D

Which number best represents an inscribed angle?

• 1

• 2

• 8

• 9

Which number best represents an intercepted arc?

• 1

• 2

• 6

• 9

Inscribed Angle: an angle with its vertex _____________ the circle and its sides  _____________     

• at the center of;
   forming chords/secants.

• on;
  forming chords/secants.

• outside;
  forming tangents.

• on the circle;
  forming a tangent and a chord/secant.

An inscribed angle that intercepts a semicircle  is a(n) ___________ angle.

• right

• acute

• obtuse

What is m∠LMO?
(Segment LO is a diameter of Circle P)

• 30°

• 45°

• 80°

• 90°

What is measure of arc WG?

• 90

• 30

• 150

• 120

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 tangent line intersecting with a radius always creates a ____________ angle

• right

• acute

• obtuse

• straight