How do you you find the square root of a square?

Answer 1

ok im 10 and i know this but ill tell u because i care about the education of the world.well 1st of all u know tht 9x9=81 right and thts a double.so the square root of 81 is 9 and 12x12=144 so the square root of 144 is 12.ok well buh byes!