REASONING
hwo
6.)
In the circle below, diameter CD is perpendicular to chord AB as shown. Radii OB and OA are drawn.

(a) How could we prove that AOEB is congruent to AOEA? Explain.

(b) What does your answer tell you must be true about segments AE and BE?
Why?

(c) If the diameter of circle Ois 20 and CE = 4, then determine the length of AB. Show how you arrived at
your answer.