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7 squared is 49, 16 squared is 256...
If you mean area of a circle then it is: 49*pi square mm
1, 4, 9, 16, 25, 36, 49, 64, 81.
The first ten perfect squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100.
no it is not. perfect squares are 1 4 9 16 25 36 49 64 81 100 121 144 169...