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## Homework Statement

The area bounded by y=√x, the x axis and the line x=9 and is perpendicular to the x axis. find the volume of the cross section using rectangle with the h=1/2b

## Homework Equations

## The Attempt at a Solution

I just want to know if i'm correct or on the right track. if not please correct me

A=HB

A=(1/2B)B =3/2B

So i take the integral of 3/2B from 0 to 9

V=3/2 integral 0 to 9 B

V=3B^2/4 from 0 to 9

V=243/4