# Tricky Triangles by IA9WdI8

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```									  Tricky Triangles
Geometry in the Real
World
Sam Rose and Taylor Friday
What are Triangles
Triangles have:
Triangles have three sides
Three angles
180 degrees

Triangles can be classified by two ways:
By their sides
By their angles
Measuring 2D triangles
There are two ways to measure triangles:
Perimeter (add up all sides a b c)

Area (1/2 Base x Height)
Triangular Prisms
Two ways to Measure Triangular Prisms:
Volume (area of triangle x length)

Surface Area (find area of all sides add
together)
Triangular pyramid
Two ways to measure triangular pyramids:
Volume (1/3BH)

Surface Area (find area of all sides add
together)
Comprehension Questions
What is a triangle?

How many sides?
Comprehension Questions
How many ways are there to measure a 2D
triangle?

How many types of 3D triangles?

How many ways are there to measure a 3D
triangle?
Works Cited
http://www-
rohan.sdsu.edu/~renglish/377/notes/chapt04/triangles.jpg

http://aleph0.clarku.edu/~djoyce/java/trig/right.gif

http://www.olemiss.edu/mathed/geometry/triangles.gif

http://members.aol.com/Polycell/tdodpr.gif

http://www.cit.gu.edu.au/~anthony/graphics/polyhedra/prisms/triang
ular_prism.jpg

http://surf.to/midithemes

```
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