Respuesta :

When you multiple a whole number times itself the resulting product is called a square number or a perfect square or simply a square so 1,4,9,16,25,36,49,64,81,100.121,144 and so are all square number
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Answer:

Because 5 times 5 is 25.

Step-by-step explanation:

5 x 5 =25

When a whole number goes into itself, it is a perfect square.

Hope this helps!

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