4. Find the volume of this regular pyramid.

4492.8 cm3

13,478.4 cm3

6739.4 cm3

8985.6 cm3

Question

4. Find the volume of this regular pyramid.


       4492.8 cm3

       13,478.4 cm3

       6739.4 cm3

       8985.6 cm3

anonymous · Answer

attachment

anonymous · Answer

Area of any regular polygon is $ \frac 12 Pa $ where P is perimeter and a is the apothem

anonymous · Answer

In this problem P= 72 cm and a =10.4 cm

anonymous · Answer

so multiply it all together?

anonymous · Answer

yes.

anonymous · Answer

374.4

anonymous · Answer

i did something wrong?

turingtest · Answer

I don't know much about pyramids, but I know about units and cmXcm does not give volume fool :P

anonymous · Answer

lol that's only for the area of the base, then you have you use the volume formula or you could derive it yourself by integrating, Turing is the best place to ask for the derivation :P

turingtest · Answer

not!
I think it can be done with an integral dA something...