why does 64 * 2 root2 = 181.0193359837561662
\(\sqrt{2}\) = 1.414213562373095...
1.414213562373095 * 2 = 2.82842712474619
2.82842712474619 * 64 = 181.01933598375616
64 x 2 x sqrt2 = 128 x 1.414 = 181.019
