A square root is an answer to the question: Which number must be squared (multiplied by itself) to get a specified number. For example, if you ask for the square root of 100, the answer is 10, because 10x10 = 100.
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the square root of a number is the number that is multiplied by itself to get that number, for example the square root of 9 is 3
Theodorus invented this spiral.
It means the square root. like the diving table over a number but with a tick means the square root of this number
Yes - you use symbols like + - / * for basic maths, as well as those for square root etc
A surd is an irrational number that can't be expressed as a fraction as for example the square root of 2