Question

ME AJUDEM PRFVVVVVVVVVVVVVV​

Answer 1

Resposta:

$a = 3 \: {cm}^{2}$

Explicação passo-a-passo:

$a = b \times h \\a = \sqrt{3} \times \sqrt{3} = \sqrt{3 \times 3} = \sqrt{9 } = 3 \: {cm}^{2}$