a) P=6a^2
2,94cm^2=6a^2
a^2=0,49cm6
a=0,7cm
b) 4,86cm^2=6a^2
a^2=0,81cm^2
a=0,9cm
c) 8,64cm^2=6a^2
a^2=1,44cm^2
a=1,2cm
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a) P=6a^2
2,94cm^2=6a^2
a^2=0,49cm6
a=0,7cm
b) 4,86cm^2=6a^2
a^2=0,81cm^2
a=0,9cm
c) 8,64cm^2=6a^2
a^2=1,44cm^2
a=1,2cm