##1.5##
##15^2 = 225##, so ##2.25 = 225/100 = 225/(10^2)##
and ##sqrt(2.25) = sqrt((15^2)/(10^2)) = 15/10 = 1.5##
##1.5##
##15^2 = 225##, so ##2.25 = 225/100 = 225/(10^2)##
and ##sqrt(2.25) = sqrt((15^2)/(10^2)) = 15/10 = 1.5##