Circles

5 Written Questions

1. 
   what is the relationship between 2 tangent lines that meet at a point in the exterior of a circle
2. 
   how would you find m∠1
3. 
   What is the red line?
4. 
   how would you find ∠A (Secant-tangents)
5. 
   how would you find ∠A (2 secants)

5 Matching Questions

1. m∠A= ½(mBDC-mBC)
2. their corresponding chords are congruent
3. they are equidistant from the center
4. bisects
5. WX²=WZ×WY

1. a
   formula for finding the lengths of the segments of tangent and secant segments that intersect
2. b two chords are congruent if and only if...
3. c
   BA ____?____ VT
4. d two minor arcs are congruent if and only if...
5. e
   how would you find ∠A (2 tangents)

5 Multiple Choice Questions

1. If a line is perpendicular to a radius...
   1. the intercepted arc for ∠B
   2. they are equidistant from the center
   3. then the angles are congruent
   4. then the line is tangent to the circle
2. If a secant and a tangent intersect at the point of tangency...
   1. they are equidistant from the center
   2. then the line is tangent to the circle
   3. then the measure of each angle formed is half the measure of the intercepted arc
   4. then its opposite angles are supplementary
3. circumference formula
   1. ∠ABC= ½(mADC)
   2. minor arc
   3. C=2∏r or C=∏d
   4. 2(∠ABC)=mADC
4. sum of central angles
   1. bisects
   2. WX²=WZ×WY
   3. minor arc
   4. 360
5. 
   formula for finding the lengths of the segments of secant segments that intersect
   1. AE×EC=BE×ED
   2. bisects
   3. WX²=WZ×WY
   4. AB×AC=AE×AD

5 True/False Questions

1. formula to find an arc length →

   True        False

2. 2(∠ABC)=mADC →
   How would you find mADC?

   True        False

3. then the angles are congruent →
   what is the relationship between 2 tangent lines that meet at a point in the exterior of a circle

   True        False

4. ∠ABC= ½(mADC) →
   how would you find ∠A (2 secants)

   True        False

5. then its opposite angles are supplementary →
   if two inscribed angles of a circle intercept congruent arcs or the same arc...

   True        False