1. Find the area of the region bounded by the circle of radius 1 centered at the origin and the lines y=1/2 and y= -1/2
2. A body is given so that the cross sections perpendicular to the x-axis are isosceles right triangle with base in the xz- plane and the third vertex on the parabola y=x^2 for 0<x< 1
a. Sketch the body
b. Find the volume of the body
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