True. EH is the diameter of D
A. Judy made a mistake between Steps 1 and 2
To factor

, you have to factor it as

, not

, because that will leave an extra 6x because of 8x - 2x.
Complementary angles
Explanation:
Completely angles are two angles that equal 90°
This is a perfect example of that
712/34 divide it then you have your answer :)