Geometry
posted by Felicia on .
A spherical storage tank has a diameter of 48 ft and is full of water. How many delivery trucks with cylindrical tanks measuring 8 ft in diameter and 10 ft long can be completely filled from the storage tank?
A)
230 trucks
B)
115 trucks
C)
86 trucks
D)
1152 trucks

Well I determined [B) 115 trucks] to be the answer because:
The Volume of A spherical storage is 57905.83579.
The Volume of a single truck with a cylindrical tank is 502.65482.
so 57905.83579/502.65482=115.200001
round up and it's 115 
a ladder which is place against a building
whose height is 40 metres should have a base of?