Question

Find the surface area of the square pyramid below.

Answer 1

Answer:

$\displaystyle 762,96\:m.^2 ≈ S.A.$

Step-by-step explanation:

$\displaystyle a^2 + 2a\sqrt{\frac{a^2}{4} + h^2} = S.A. \\ \\ 14^2 + 2[14]\sqrt{\frac{14^2}{4} + 19^2} = S.A. \\ \\ 196 + 28\sqrt{\frac{196}{4} + 361} ≈ 762,9567885 ≈ 762,96$

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Answer 2

The answer is actually 728m^2