College Math CLEP Prep Practice Exam

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What is the square root of 324?

The correct answer is: 18

Square root is the number that, when multiplied by itself, gives the original number. In this case, the square root of 324 is 18, because 18 x 18 = 324. The other options are incorrect because - B: 30 is not the square root of 324 as 30 x 30 = 900, which is greater than 324. - C: 36 is also not the square root of 324 as 36 x 36 = 1296, which is greater than 324. - D: 54 is not the square root of 324 as 54 x 54 = 2916, which is greater than 324.