Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

clumsy shark
2012-12-26 00:15:13

Many ThnX ^_^

scientia
2012-12-26 00:13:15

Write the equation as



This is an ellipse with semimajor axis
and semiminor axis
. Its area is
. Integrate this from
to
to get the volume of the solid.

The surface area is a bit more complicated

clumsy shark
2012-12-25 23:15:53

Given the solid S: z=x^2 + 4y^2 , z <= 16
Find the volume and surface area of the solid S

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