This is the "4.1: Triangles and Angles" page of the "Geometry Chapter 4" guide.
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Geometry Chapter 4   Tags: geometry, mahlman, math  

Last Updated: Jan 19, 2011 URL: http://libguides.mpsaz.net/content.php?pid=110602 Print Guide RSS Updates

4.1: Triangles and Angles Print Page
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Theorem

Classifying By Sides

Equilateral Triangle

Isosceles Triangle

Scalene Triangle


3 Congruent Sides At least 2 Congruent Sides No Congruent Sides

Classifying By Angles

Acute Triangles

Obtuse Triangles

Right Triangles

3 Acute Angle 1 Obtuse Angles 1 Right Angle

Triangle Sum Theorem

Exterior Angles Theorem

    m<W = m<X + m<Y

 

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