How do the end points of
and relate? ?
. If A is the center, then what is true about the lines and , and consequently and ?
What is true about the sum of
and ? ?
See hint from part (a).
If A is the center, then the line
must be the circle's diameter.
What does that mean for the the arc or semi-circle?
See hints for part (b).
Use the answer from part (e) and hints from part (b).