1. Example by Mrs. Lancaster
My Digital Dictionary of
Geometric Shapes
Example by
Mrs. Lancaster

2. Our Project
In groups of 3 to 4 students you must make a PowerPoint digital dictionary of geometric shapes.
Each PowerPoint must have 10 slides total
The first page must include a title and the name of everyone in your group.
The next 9 pages will be of angles and polygons and/or 3D shapes of your choosing. There must be a picture and a definition on each slide.
The pictures for the project will be taken by your group using a digital camera and downloaded by Mrs. Lancaster into your PowerPoint.

3. What is a Polygon?
Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).
Examples:

4. Obtuse Triangle
An obtuse triangle has exactly one obtuse angle

5. Right Triangle
A right triangle has exactly one right angle

6. Equilateral Triangle
Equilateral triangles have all sides and angles the same

7. Isosceles Triangle
Isosceles triangles have exactly two sides that are the same (congruent)

8. Quadrilateral Quadrilaterals are polygons with exactly 4 sides
Examples include:

9. Pentagon
Pentagons are polygons with exactly 5 sides

10. Hexagon
A hexagon is a polygon with exactly 6 sides

11. Heptagon
A heptagon is a polygon with exactly 7 sides

12. Octagon
An octagon is a polygon with exactly 8 sides

13. Pyramid
A solid figure with a polygonal base and triangular faces that meet at a common point

14. Prism
A solid figure whose bases or ends have the same size and shape and are parallel to one another, and each of whose sides is a parallelogram.

15. Right Angle
Angle that measures exactly 90 degrees

16. Acute Angle
An angle that measures between 89 degrees and 1 degree

17. Obtuse Angle
An obtuse angle measures between 91 degrees and 179 degrees