A square root is the number that is squared to obtain a square number so it can therefore be considered a root of that square number (or basis for that square number).
It can also be noted that each square number, when displayed using dots will always form a perfect square perhaps giving it it's name
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You call them principal square roots.
twenty three has no square root but it will be in between 4 squared and 5 squared but more towards the 5. also there is + and - square roots such as the two square roots of 9 are +3 and -3. - times - = + and + times + = +.
The two square roots of 4 are 2 and -2. Both {2,-2} when squared, equal positive 4.
With square roots if you have a number times itself or squared then that that product is that numbers square root example: 9x9= 81 81 square root is 9
Perfect Square