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Plane Figures

Introduces a mathematical system which is followed by familiar definitions from plane geometry involving points, lines, angles, and various types of polygons.

Subsections: Mathematical Systems; Points, Lines, and Planes; Half-Planes, Segments, Rays, and Angles; Angle Measurements; Perpendicular and Parallel Lines; Curves and Convex Sets; Polygons; Problem-Solving Application

One-page Math Activity: Angles in Pattern Block Figures







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