volumes question (1 Viewer)

[fahadmumtaz88]

Guys, i'd much appreciate if u cud do this volumes question for me, ive attached the diagram for u and the question as follows:thanks


A solid has a cross sectional area given by A(h)= 36 + 21h - 2h^2 where h is the perpendicular distance above its base. If the height of the solid is 12 cm, find its volume

 

[yrtherenonames]

I really suck at volumes, but from a glance it just looks like its

pi. Integral of 0-12 36 + 21h - 2h^2 dh
=pi(36h+(21/2)h^2-(2/3)h^3)
=pi(432+378-144)
=666pi?
Don't take my word for it though...wait till someone remotely intelligent posts

 

[KFunk]

The devil's integral.

 

[justchillin]

indeed tis