Respuesta :

Answer:

FA=7.29

Step-by-step explanation:

[tex]FD=\sqrt{10^{2}-8^{2} } \\FD=\sqrt{36} \\FD=6\\[/tex]

∠EDF=53° (properties of retangle)

∠EAD=180-90-53 (∠ sum of Δ)

          =37

[tex]\frac{AD}{sin90} =\frac{8}{sin37} \\AD=13.29[/tex]

FA=AD-FD

FA=7.29

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