$16\sqrt{3} \text{ cm}^2 \approx 27.7 \text{ cm}^2$

$32\sqrt{3} \text{ cm}^2 \approx 55.4 \text{ cm}^2$

$64 \text{ cm}^2$

$8\sqrt{3} \text{ cm}^2 \approx 13.9 \text{ cm}^2$