Question

Calcule a area de um hexagono regular de 3,5 cm de lado

Answer 1

$A= \frac{3a^2 \sqrt{3} }{2}=$

$A= \frac{3.(3,5)^2 \sqrt{3} }{2}= \frac{3.12,25. \sqrt{3} }{2}= \frac{36,75.1,7}{2} = \frac{62,4750}{2}=31,23 cm^2$  aproximadamente