### 00h 39m

Basic Geometrical Concepts- What is a Point?01m 33s
- What are Rays; Lines and Line Segments?03m 02s
- What is a Plane?01m 43s
- How do we Construct a Perpendicular Bisector of a Line Segment?03m 38s
- How do we Draw a Perpendicular to a Line from a Point Not on that Line?01m 26s
- What are Angles?02m 08s
- What is a Polygon?01m 30s
- What are Triangles?04m 23s
- What are the Different Regions of a Triangle?01m 40s
- What are the Different Types of Triangles?03m 25s
- What is a Quadrilateral?04m 10s
- What are the Different Pairs of Sides and Angles in a Quadrilateral?04m 56s
- What are the Different Properties of Quadrilaterals we will look at?02m 13s
- A Summary of the Properties of a few Special Quadrilaterals03m 16s