The moment of inertia at the midddle of center= 1/12 M( b^2 + a^2)= 0.2/ 12 ( 0.0025 + 0.0064) = 1.483 x 10^-4
Distance between the center and axis at corner = 1/2 sqroot ( a^2+b^2)
Using the paralllel axis theorem,
I = 1/12 M ( b^2 +a^2) + M ( a^2+b^2) / 4 = 1.483 x 10^-4 + 4.45 x 10^-4= 5.933 x 10^-4
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