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For a conical frustum:

  • Lateral Surface Area = Ï€(r1 + r2)s = Ï€(r1 + r2)√((r1 - r2)2 + h2)
  • Top Surface Area = Ï€r12
  • Base Surface Area = Ï€r22
  • Total Surface Area = Ï€(r12 + r22 + (r1 * r2) * s) = Ï€[ r12 + r22 + (r1 * r2) * √((r1 - r2)2 + h2) ]
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Q: What is the formula for the surface area of a frustum?
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