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12 squared.
12 x 12 is equal to 12*12 or 12 squared it equals to 144
this is a pythagorean triple and c2=169 so c=13 25+144=169=132
92 = 81122 = 14481 + b2 = 144(take 81 from both sides)b2 = 63b = 7.937253933
The answer is 12, since 12 times 12 equals 144- that is, 12 squared is 144. The square root of a number is that number which when squared gives the given number. Unless the number is a square, its square root will be a decimal approximation.