Answer:
height = 5 in
Step-by-step explanation:
Area =h x (b1+ b2)/2
50 = h x (12 + 8)/2
50 = h x 10
h = 5
75.4
A=2πrh+2πr2=2·π·2·4+2·π·22≈75.39822
c
1 is the answer OR h
B. x4 + 4x3 + x2 + 4x
