anonymous
  • anonymous
A solid has a circular base of radius 3. If every plane cross section perpendicular to the x- axis is an equilateral triangle, the. It's volume is..
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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experimentX
  • experimentX
??? couldn't picture at all
anonymous
  • anonymous
*then, it's volume is ...
TuringTest
  • TuringTest
|dw:1334049066451:dw|imagine a bunch of triangles popping out in the z-direction

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dumbcow
  • dumbcow
circle: x^2 + y^2 = 9 --> y = sqrt(9-x^2) |dw:1334048930933:dw| volume is sum of all the areas of the triangles area = sqrt3/4 *(2y)^2 = sqrt3 y^2 = sqrt3(9-x^2) \[V = \sqrt{3}\int\limits_{-3}^{3}(9-x^{2}) dx\]
TuringTest
  • TuringTest
^what dumbcow said|dw:1334049136750:dw|
anonymous
  • anonymous
Oh I see! Thanks.

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