why are 1 4 9 16 and 25 called perfect squares
Perfect squares can be divided and multiplied by the same number to get the same number. For example 25/5=5. 55=25.4/2=2, 22=41/1=1, 11=19/3=3, 33=916/4=4, 4*4=16.Hence the perfect squares.
Because they are squares of integer numbers.\(1=1^2\\ 4=2^2\\ 9=3^2\\ 16=4^2\\ 25=5^2\)
