Geometry
G_A_D_AS2_fig1
G_A_D_AS3_fig1
G_A_D_AS3_fig2
G_BI_I1_E1_fig1
A convex polygon.
G_BI_I1_E1_fig2
A non-convex polygon.
G_BI_I1_E1_fig3
A regular hexagon.
G_BI_I1_E1_fig4
An irregular hexagon.
G_BI_I1_E1_fig5
Obtuse-angled scalene triangle.
G_BI_I2_E1_fig1
G_BI_I2_E1_fig2
\(\theta\) is the included angle.