If the diameter of circle O is 20 and CE = 4, then determine the length of AB . Show how you arrived at your answer.

I'm a bit puzzled here because they did not provide you with any measures of the other angles, so i am unable to provide a theorem or postulate to support my answer, but i'd say 90 degrees because it looks closer to a right angle than anything.

5/$%! /7646*\! /×+××/$÷_857$,! 5+*57478eyr7 so the correct answer is 846=8÷6÷*3. hahahah

0.61 has 2 decimal places, so we put the decimal digits of 0.61, 61 over 1 followed by the number of zeroes equal to the number of decimal places, 

2:     61/1 = 61/100.

0.61 as  decimal fraction  = 61/100