calculus
posted by Caitlin .
The base of a solid consists of the region bounded by the parabola y=rootx, the line x=1 and the xaxis. Each cross section perpendicular to the base and the xaxis is a square. Find the volume of the solid.

Each cross section (from x=0 to x=1) is a square of side √x.
So the total volume is the area of the square times dx, or A(x)dx
V=∫ (√x)^2dx from x=0 to 1
=∫ xdx
=[x²/2] from 0 to 1
= 1/2