hello sir
please help me with this problem.

A natural number is called a ____________ or ___________ if it is the square of some natural number.

A natural number is called square number or perfect square if it is the square of some natural number.
For example :The natural numbers are 1,2,3,4,.......Now, 12 = 1; 22 = 4; 32 = 9, .... and so on.Now, 1, 4, 9, 16, ....... are called perfect squares.

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