Answer:
Volume = 175.93km ^3
Surface Area = 753.97km ^2
Step-by-step explanation:
Cylinder surface area =A=2πrh+2πr2
Volume = V=πr2h
We plug in
Area = 2 x π x 8km x 7km =2π 56 = 351.85km ^2
= 351 858 377 m^2
+ 2πr2 = 2 x π x 64 = 402.12km^2
Surface Area = 2π 56 + 2π x 64
402.12 + 351.85 =753.97km ^2 = 753 97 8377 m^2
Volume = π x 8 x 8 x 7 = 448π = 1407.43km ^2
= 140.743m^3
