This document discusses key concepts in geometry, including shapes (polygons), angles, lines, and solids. It reviews polygons as closed shapes where all sides meet, and angles as the space between two sides or rays connected at a vertex. Lines are defined as a continuous collection of points extending indefinitely in both directions. The document aims to provide definitions and examples of fundamental geometric elements.

1. Geometry
Continued!

2. Geometry: Its all about the Shapes
The section of math, that deals with:
• Shapes, called Polygons (like we saw on the first line)
• Angles (space between two rays connected by a vertex, or the space
between two side of a shape)
• Lines (continuous collection of points that expand forever)
• Solids (three dimensional shapes, like a box)

3. Geometry: Its all about the Shapes
The section of math, that deals with:
• Shapes, called Polygons (like we saw on the
first line)
• Angles (space between two rays connected
by a vertex, or the space between two side
of a shape)
• Lines (continuous collection of points that
expand forever)
• Solids (three dimensional shapes, like a box)
Last time we talked
about shapes, or
Polygons and Angles.
We’ll review and then

4. Geometry: Its all about the Shapes
The section of math, that deals with:
• Shapes, called Polygons (like we saw on the
first line)
• Angles (space between two rays connected
by a vertex, or the space between two side
of a shape)
• Lines (continuous collection of points that
expand forever)
• Solids (three dimensional shapes, like a box)
…. then discuss Lines
and Solids

5. Shapes, called Polygons!
A closed object, where all sides meet and are straight

6. Shapes, called Polygons!
A closed object, where all sides meet and are straight
This is a
Polygon!

7. Shapes, called Polygons!
A closed object, where all sides meet and are straight
This is NOT

8. Angles: the space between two sides of a polygon

9. Angles: the space between two sides of a polygon
The angle is
represented by
an arc, here
colored red

10. Number of sides= Number of angles
The number of angles in a polygon is equal to the
number of sides
Last time we saw that triangles had 3 sides AND 3
angles
Squares and rectangles had 4 sides and 4 angles

11. Keeping it Straight:Lines
The section of math, that deals with:
• Shapes, called Polygons (like we saw on the first line)
• Angles (space between two rays connected by a vertex, or the space
between two side of a shape)
• Lines (continuous collection of points that expand forever)
• Solids (three dimensional shapes, like a box)

12. Line definition