Find the volume of the pyramid with height h and rectangular base with dimensions b and 2b

How do i do this using Calculus?

Question

Find the volume of the pyramid with height h and rectangular base with dimensions b and 2b

How do i do this using Calculus?

anonymous · Answer

why do you need to use calculus?

anonymous · Answer

I understAnd using cross sections to find the area and then integrating that to find volume but i dont get why the book shows my answer 2b^2h divided by 3.... Im not getting where the 3 comes from

anonymous · Answer

Oh okay I was just wondering. I know nothing about calculus

anonymous · Answer

good luck

anonymous · Answer

Volume of a pyramid is...

$$(B \times h) \over 3$$
Where B is the base area and h is the height.
Hope this helps.

anonymous · Answer

Thanks so much. Its late and my brains fried haha

anonymous · Answer

;) You're welcome.