Oblicz pole kwadratu o boku A) pierwiastek 8 B) 3 pierwiastek 2 m C) 10 pierwiastek 5 m D) 2 pierwiastek 7 m

Wzór na pole kwadratu a kwadrat A 8 B 6 C 50 D 14

a) [latex]P=a^{2} o a=sqrt{8}\\P=(sqrt{8})^{2}\\oxed{oxed{P=8[j^{2}]}} [/latex] b) [latex]P=a^{2} o a=3sqrt{2}m\\P=(3sqrt{2}m)^{2}\\P=9*2m^{2}\\oxed{oxed{P=18m^{2}}}[/latex] c) [latex]P=a^{2} o a=10sqrt{5}m\\P=(10sqrt{5}m)^{2}\\P=100*5m^{2}\\oxed{oxed{P=500m^{2}}} [/latex] d) [latex]P=a^{2} o a=2sqrt{7}m\\P=(2sqrt{7}m)^{2}\\P=4*7m^{2}\\oxed{oxed{P=28m^{2}}}[/latex]