1. Geometry
By: Dylan Heyl

2. Geometry in History
Euclid, a famous mathematician was known as the “Father of Geometry” and wrote the famous book
Elements about geometry.
Leonardo Da Vinci drew the Vitruvian Man which showed the symmetry of a man as shown in the
picture below.
The ancient Egyptians made pyramids for their king’s tombs or for other reasons.

3. 2 Dimensional
Pentagon
Shapes
Hexagon
Heptagon
Octagon
Nonagon

4. 3 Dimensional
Shapes
Cube
Square pyramid
Rectangular prism
Triangular pyramid
Triangular prism
Cylinder
Cone

5. Getting Out Of The
Basics

6. How To Find The
Perimeter of a Shape
The way that you find the perimeter of a shape is
you measure each side and add them up.
Perimeter is used to to find what is outside of a
shape.
Example: 4 in. Answer: 4+4+4+4=16
in.

7. How to Find the
Area of a Square
The area of a shape is found by multiplying length
x width
Area is used to find what is inside a shape
Example: 6in.
Length is the 6in. and width is the 4in. in the example 4in. Answer:(6)(4)=24

8. How To Find The
Area Of A Triangle
The area is found by doing 1/2 base x height
Example:
4in.
4in. Answer: 1/2 (4)(4)= 8

9. How do you find the
area of this shape?

10. Cutting up shapes
Cut up the shape into many shapes like in the example.
Find the area of each shape then add them up.

11. Almost Done!!!!!!!!!!!

12. Volume
The volume is found by doing length x base x
height.
Example:
Answer: (5)(4)(7)=140

13. Nets
Nets are what you get when you unfold a 3
dimensional shape

14. THE END

15. SOURCES
• http://mrsbangle.weebly.com/geometry-cp.html
• https://sites.google.com/site/cstgeometry/home
• http://www.mathsisfun.com/shape.html
• http://ef004.k12.sd.us/ch12notes.htm
• http://www.korthalsaltes.com/model.php?name_en=rectangular%20prism