Question

calcule a área da figura

Answer 1

.

$A=l\times l\\ \\ A=(7+ \sqrt{7} )(7+ \sqrt{7} ) \\ \\ A=7.7+7. \sqrt{7} +7. \sqrt{7} + \sqrt{7^2} \\ \\ \\ A=49+14 \sqrt{7} +7 \\ \\ A=56+14 \sqrt{7}$