1. Square

Area \[A=S^2\]

Moment of inertia \[I_{x}=\frac{S^4}{12}\] \[I_{y}=\frac{S^4}{12}\] \[I_{p}=\frac{S^4}{6}\]

2. Circle

Area \[A=\pi R^2\]

Moment of inertia \[I_{x}=\frac{\pi D^4}{64}\] \[I_{y}=\frac{\pi D^4}{64}\] \[I_{p}=\frac{\pi D^4}{32}\]