Predating the invention of calculus by almost 2000 years, archimedes found that the area under a parabolic arch is always 2 3 the area of the bounding rectangle. 1 show that there is a similar relationship between the volume under a paraboloid and the volume of a can (cylinder) inside which the paraboloid sits.

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Mathematics

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6 May, 13:53

Predating the invention of calculus by almost 2000 years, archimedes found that the area under a parabolic arch is always 2 3 the area of the bounding rectangle. 1 show that there is a similar relationship between the volume under a paraboloid and the volume of a can (cylinder) inside which the paraboloid sits.

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Tank · Answer 1

A paraboloid is a surface in space, a three-dimensional version of a parabola. It is assumed that the paraboloid opens downwards. So we can take it to have an equation in R^3 of the form z = BB-BB (x^2 + y^2), where you will want to fill in the BBs so that the piece of the paraboloid sitting above the xy-plane has radius R and height H.