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April 18, 2014

April 18, 2014

Posted by **Ghanny** on Monday, April 12, 2010 at 6:37pm.

- math -
**PsyDAG**, Tuesday, April 13, 2010 at 4:16pmTotal surface area = πrs + πr^2

Since πr^2 is the area of base, πrs = area of lateral surface.

Use Pythagorean Theorem to find s, the distance along the side from tip to base.

s^2 = h^2 + r^2

I'll let you do the calculations.

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