geometry
posted by Glenna .
find the volume of a regular pentagonal pyramid whose sides measure 12m and height is 15m.

the area of the base is 1/2 apothem*perimeter
v = 1/3 Bh 
Cylinder A has a volume of 360 cm2. Cylinder B has a base and height identical to that of Cylinder B, but leans to the right in such a way that its slant length is greater by 4 cm. What is the volume of Cylinder B?