# Pyramid cut

We cut the regular square pyramid with a parallel plane to the two parts (see figure). The volume of the smaller pyramid is 20% of the volume of the original one. The bottom of the base of the smaller pyramid has a content of 10 cm

^{2}. Find the area of the original pyramid.**Result****Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):**

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See also our trigonometric triangle calculator.

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