## CHAPTER 11: 2-D AND 3-D GEOMETRY

**Lesson 2: Parallel, Intersecting, and Perpendicular Lines and Faces **

**Goal**

Identify and draw parallel, intersecting, and perpendicular lines, edges, and faces.

**Instructions for Use**

**3-D Solids**

Click on either “Prisms” or “Pyramids” and then click on a shape you wish you see. Identify the parallel edges, parallel faces, perpendicular edges, and perpendicular faces for each shape.

**Geometric Solids**

Manipulate and color each shape to explore the number of faces, edges, and vertices. Click “New Shape” to get another shape. For each shape identify the parallel edges, parallel faces, perpendicular edges, and perpendicular faces.