This cheat sheet gathers together the resources on the topic of parallel and perpendicular lines. See the descriptions and links below. Each link takes you to a collection of resources around that topic. The middle column indicates the number of resources available and the third column takes you to page on Media4Math where those resources can be found.

This is part of a collection of clip art images showing different types of angles. Each type of angle measure includes a labeled and unlabeled version.

This is part of a collection of clip art images showing different types of angles. Each type of angle measure includes a labeled and unlabeled version.

This is part of a collection of definitions of geometric theorems and postulates.

This collection of clip art images includes image sequences for key topics in geometry. This includes points, lines, planes, angles, triangles, quadrilaterals, and polygons. Each sequence of images provides an overview of the topic.

In this TI-Nspire CX tutorial, we go through the steps of constructing an Angle Bisector and measuring the distance from a point on the Bisector to the rays that define the angle.

In this TI-Nspire CX tutorial, we go through the steps of constructing an inscribed circle for any given triangle.