3*SQRT(2)
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The SQRT(18) in radical form is 3*SQRT(2), where SQRT represents the radical symbol.
the square root of 18 can be simplified to 3 * the square root of 2.The perfect square 9 is a factor of 18. That means the square root of 9 * the square root of 2 = the square root of 18.the square root of 9 can be simplified to 3.That leaves 3 * the square root of 2.
3 times the square root of 2
The diagonal of an 18 inch square is about 25.46 inches. (18 times the square root of 2).
18 ft Diagonal of a square is the square root of 2, times the side.