College Math CLEP Prep Practice Exam

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.