What is the formula to find the volume of a 5 sided polyhedron?

[emopoppins]

the surface area of the base is 2511.25 cm squared. the height of the structure 24 cm. the perimeters of the 5 sides (making up the base) are 15,13,20,17, and 10.

anybody wanna help me.

+karma?

 

[4-Front]

http://en.wikipedia.org/wiki/Platonic_solid

V=1/3*r*A

 

[hotdog.garbage]

hmm, the guy with the confederate flag icon cant figure out a math problem.

 

[emopoppins]

what do the R and A stand for?

radius, area of base? its not a triangle.