Geometry lesson GED

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