F. B C D E

Line l passes through the center of a circle.  Prove that if l is perpendicular to a chord of that circle, then l bisects the chord.  Be sure to include a diagram and state the given and conclusion in terms of your diagram. Line l passes through the center of a circle.  Prove that if l is perpendicular to a chord of that circle, then l bisects the chord.  Be sure to include a diagram and state the given and conclusion in terms of your diagram.

Is there a one-to-one correspondence between the points on a 2-inch line segment and the points on a 5-inch line segment? If so, describe such a correspondence; if not, explain why not?

Which angle is congruent to angle 3?   <1   <2   <3   <4