Triangle Review Chapter 4

1
Triangle Review Chapter 4

• Or things you should know about triangles
• Obj classify triangles, prove congruence

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Classify Triangles by Angle
3
Classify Triangles by Sides
4
Find the sides of an equilateral triangle
2x
X9
3x-9
5
Using the Distance formula

• Find the measures of the sizes of triangle ABC
  with vertices at A(2,6), B(4,-5), and C(-3,0)

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More stuff you should know.

• The sum of the angles of a triangle add up to
  ____ degrees.
• The measure of an exterior angle of a triangle is
  equal to the sum of the measures of the two
  remote interior angles.

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Congruent Triangles

• Two triangles are congruent if their
  corresponding parts are congruent.
• Can use SAS, SSS, ASA, AAS, HL (for right
  triangles).

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Are these triangles congruent?
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Transformations

• Slide just a movement up, down, left or right
• Reflection flip, mirror image
• Rotation turn like a clock

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Name that Transformation!
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Name that transformation!
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To finish up chapter 4..
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Homework

• Geometry Pg. 258 12, 15, 19, 26-28