Szczegółowe wyjaśnienie:
a) 2b = 8 cm //:2
b = 4 cm
b[tex]\sqrt{3}[/tex] = 4[tex]\sqrt{3}[/tex]
Obw. = 8 cm + 4 cm + 4[tex]\sqrt{3}[/tex] cm = 12 cm + [tex]4\sqrt{3}[/tex] cm
b) a[tex]\sqrt{2}[/tex] = 6 cm //:[tex]\sqrt{2}[/tex]
a = [tex]\frac{6}{\sqrt{2} }[/tex] cm
a = [tex]\frac{6\sqrt{2} }{2}[/tex] cm
a = 3[tex]\sqrt{2}[/tex] cm
Obw. = [tex]3 \sqrt{2}[/tex] cm + [tex]3\sqrt{2}[/tex] cm + 6 cm = 6 cm + [tex]6\sqrt{2}[/tex] cm
