18 squared is 324
182=324
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Sure thing, honey. 18 squared is 324. In expanded form, it would be 18 x 18, which equals 324. So there you have it, 18 squared in all its expanded glory.
18 squared =324
The area of rectangle is : 18.0
225 (15 squared)256 (16 squared)289 (17 squared)324 (18 squared)
it is 18 because when you put all the numbers back into the square root it becomes the square root of 18 and the square root of 18 squared would be 18