The base of this regular right pyramid is a square. What is its surface area?

asked Feb 3, 2020 145k views

4 votes

by Sasi

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4 votes

Answer:

○ A) 21 ft.²

Explanation:

${a}^(2) + 2a \sqrt{ \frac{ {a}^(2)}{4} + {h}^(2) } = S. A. \\ \\ {3}^(2) + 2(3) \sqrt{ \frac{ {3}^(2) }{4} + {2}^(2)} = 24 \\ \\ 24 ≈ 21$

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John Camerin answered Feb 10, 2020

5.8k points

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