Answer :
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]
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]
