Circles Special Segments Chords Tangents and Secants

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.

The intercepted arc of an inscribed angle  is ___________________ the measure of the inscribed angle.

• congruent to

• half

• double

• supplementary to 

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

• right

• acute

• obtuse

Solve for a and b.

• a=74 degrees
  b=93 degrees

• a=93 degrees
  b=74 degrees

• a=87 degrees
  b=106 degrees

• a=106 degrees
  b=87 degrees

What is m∠ACB?

• 67.5°

• 90°

• 22.5°

• 45°

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