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Nadusha1986 [10]
3 years ago
11

Find the surface area of the square pyramid below.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
7 0

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

I am joyous to assist you anytime.

klasskru [66]3 years ago
7 0

The answer is actually 728m^2

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