Thread: Surface area and Solid of revolution

1. Surface area and Solid of revolution

Hi I'm stuck with my homework for solid of revolution and surface area of this figure Trapezoid with slope of -5/L. R2 = 2L and R1 = 3L/2. ANy help is appreciated.

/ ----- |---------\
/ -----| ---------\ slope = -5/L
/_____|____|__\
...............3L/2 ...2L

a. Find the equation in terms of L (vol and surface area)
b. Vol as function of L
c. Value of L that minimizes the volume
d. Minimum Volume

2. Re: Surface area and Solid of revolution

here' the picture

3. Re: Surface area and Solid of revolution

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-Dan