Question

Calcule o perímetro de cada figura.

Answer 1

$a) \sqrt{28} + \sqrt{18} + 4\sqrt{2} + \sqrt{112} \\\\ \sqrt{4.7} + \sqrt{9.2} + 4\sqrt{2} + \sqrt{4.4.7} \\\\ 2\sqrt{7} + 3\sqrt{2} + 4\sqrt{2} +4\sqrt{7} \\ \\ 2 \sqrt{7} + 4\sqrt{7} + 3 \sqrt{2} + 4\sqrt{2} \\\\ 6 \sqrt{7} +7 \sqrt{2}\\\\\\ b) \sqrt{20} + \frac{1}{2}\sqrt{98} + \sqrt{20} + \sqrt{2} + 4\sqrt{5} + \sqrt{50} \\ \\ \sqrt{4.5} + \frac{1}{2}\sqrt{49.2} + \sqrt{4.5} + \sqrt{2} + 4\sqrt{5} + \sqrt{2.25} \\\\ 2 \sqrt{5} + \frac{7}{2}\sqrt2 + 2\sqrt5 + \sqrt2 +4\sqrt5 + 5\sqrt2$

$8\sqrt5+ \frac{7+2+10}{2}\sqrt2\\\\ 8\sqrt5 + \frac{19}{2}\sqrt2$