Answer:
[tex]\displaystyle 762,96\:m.^2 ≈ S.A.[/tex]
Step-by-step explanation:
[tex]\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[/tex]
I am joyous to assist you anytime.
