Terms & Definitions

Understanding the definition of point, collinear/non-collinear points, line, perpendicular line, parallel line, line segment, angle, ray, polygons, circle and other 2D and 3D shapes.

Mapped to CCSS Section# HSG.CO.A.1

Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.