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Yes. The square root of 49 is 7.
squaring a number is when you times it by itself the square root of a number is the actual base number e.g the square root of 49 is 7 and 7x7=49
7 7 x 7 = 49 so sqrt(49) = 7
As an example, the square root of 49 is 7. It's this because the square root of a number is another number multiplied by itself(7X7=49).
The square root of a negative number is considered an imaginary number. In this case, the square root of -49 is 7i, where i represents the imaginary unit (√-1). This is because when you square 7i, you get -49.