Respuesta :

Answer:

[tex]688.19m^2[/tex]

Step-by-step explanation:

[tex]A=\frac{1}{4} \sqrt{5(5+2\sqrt{5} } a^2\\=\frac{1}{4} \sqrt{5(5+2\sqrt{5} }* 20^2\\=688.19096m^2\\=688.191m^2\\=688.19m^2[/tex]

netlarue98

Answer:

688.2ft^2

Step-by-step explanation: