Find the Volume of the solid described. Give exact answers as reduced fractions in terms of pi.
1. The base is a circle with radius a. Find the volume if cross sections perpendicular are squares.
2. The base is the region enclosed by a circle of radius 7cm: find the volume if cross sections perpendicular to a fixed diameter are equilateral triangles.
3. Base is region bounded by y=1/x, y=0, x=1, x=4 and cross sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the xy-plane.
4. The base of a solid is bounded by x=y^2 and x=4. Find the volume if cross sections are:
a) perp. to -axis and are isosceles triangles with base in xy-plane and height is 1/2 of base.
b) perp. to x-axis and are ososceles right triangles with one =~ side in the xy-plane.
c) perp. to y-axis and are squares with one side in the xy-plane.
d) perp. to y-axis and are semicircles with diameter on xy-plane.
please please help me...i am pleading. you have no idea. help... :(
2007-03-28
11:36:07
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1 answers
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asked by
Seanoso88
1