Answer to Question #282157 in Calculus for james

Question #282157

Find the volume generated by revolving the area bounded by the lines x + y = 5, x = 0

and y = 0, about x-axis.

Expert's answer

"V=\\pi\\int f^2(x)dx=\\pi\\int_0^5 (5-x)^2dx=\\pi(25x-5x^2+x^3\/3)|^5_0=125\\pi \/3"

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