Answer:
r = Sqrt(81.2)
Step-by-step explanation:
V = pi * r^2 * h
255 = pi * r^2 * 1
255 = pi * r^2
255/pi = r^2
81.2 = r^2
Sqrt(81.2) = r
It is 65° because angle 6 and angle 4 are alternate interior angles so they are the same
The answer is A I believe