SOLUTION: A symmetrical square-based pyramid has height 10 cm and slant edges of 15 cm. Find the dimensions of its square base.

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Question 1007994: A symmetrical square-based pyramid has height 10 cm and slant edges of 15 cm. Find the dimensions of its square base.
Answer by ikleyn(52779) About Me  (Show Source):
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A symmetrical square-based pyramid has height 10 cm and slant edges of 15 cm. Find the dimensions of its square base.
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Half of the base edge dimension is sqrt%2815%5E2-10%5E2%29 = sqrt%28125%29 = 5%2Asqrt%285%29 cm.

Hence, the base edge dimension is 10%2Asqrt%285%29 cm.