42
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7
squared is 49. Cubed is 343.
7 squared is 49, 16 squared is 256...
a squared plus b squared equals c squared so lets say a=7 and b=7. but then what is c? 7x7+7x7=cxc so 49+49=cxc so 98=cxc so 9.9=c
It is: 4*7 = 28 cm