Respuesta :

Answer:

a = 4

Step-by-step explanation:

[tex]A = \frac{b * c * sen 45}{2} \\\\A = 8 * \sqrt{2} * \frac{\sqrt{2} }{2} * \frac{1}{2} \\\\\\\\A = 4[/tex]

Answer:

4

Step-by-step explanation: