Construction of Quadrilaterals and Their Interior Angles

2016-10-05 00:50
This applet demonstrates the basic geometric construction and properties of a quadrilateral. By defining four vertices A, B, C, and D, it constructs a polygon and dynamically displays its four sides (a, b, c, d) and four interior angles (α, β, γ, δ). Utilizing GeoGebra's Polygon and Angle tools, it visually presents the relationships between the side lengths and angles of a quadrilateral, making i