PQ is the tangent, so, we have the theorem that says: The arc measure is double the amount of the angle the tangent makes. Therefore, 66/2 = 33, thus the answer is letter A. (see attached file for further explanation on the theorem).
Y = a x² + b x + c y = 0.0473809524 · 20² + 2.221428571 · 20 - 0.005952381 = = 18.95236 + 44.42875 - 0.05952381 = 63.374978 ≈ 63.4 Answer: C ) 63.4 ft.