Answer:
[tex]A[/tex] ≈ [tex]127.39[/tex] [tex]ft^{2}[/tex]
Step-by-step explanation:
[tex]A = a^{2}+2a\sqrt{\frac{a^{2}}{4}+h^{2} }[/tex]
a (base edge) = 6
h (height) = 7