Then the number is 21 because 3 times 21 = 63
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(3w(3w)/3w) + 5
-63=7w
If x = 2 and y = 3 and z = 6 then the value of w if w = xyz is 36. (2 times 3 times 6)
45
w x 2w = 63. 2w^2 = 63 w^2 = 31.5 w = sqrt 31.5 = 5.6125 so L = 11.225 which gives area of 63.0003, which is near enough for Wiki!