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Find the angle in the triangle?

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You need to review triangle properties for this question. Specifically:

 

  • What is the sum of all the angles in a triangle?
  • What does it mean if a triangle has 2 equal vertices?
  • What does it mean if a triangle has a 90 degree angle?

Those questions are very easy once you go over the properties of triangles.

 

Here's a few resources:

 

http://mathworld.wolfram.com/Triangle.html

http://www.mathwarehouse.com/geometry/triangles/

http://euclid.barry.edu/~mat476/Apang/apangppt2/sld003.htm

 

Good luck!

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