please explain step by step

2) (12 pts) Set up and evaluate the integral needed to find the exact volume | of the solid whose base is in the first quadrant bounded by the curve ? 8 - Are the liner = 0 the line > = 1, and the r-axis. The cross-section slices are triangles whose bases are perpendicular to the r-axis with each base equal to the height of the triangle. y-axis V8-4x X-axis TO 0.5