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4.2 Special Triangles

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J
jdrambo

This document discusses properties of isosceles and equilateral triangles. It reminds the reader that isosceles triangles have two equal sides and two equal angles, and equilateral triangles are a special type of isosceles triangle that has three equal sides and three equal angles. The document emphasizes that isosceles and equilateral triangles have predictable angle and side properties that can be useful for solving problems, especially on standardized tests.

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4.2 Properties of Special Triangles pg. 204 to 209 Recalll from chapter 1 what an isosceles triangle is....
Isosceles triangles are very special AND are used alot on the SAT... WHY??????? What do you know for sure if it is isosceles? YOU also know....
PLEASE NOTE: Bottom of a triangle and BASE of a triangle MAY NOT be the same thing.... Which angles are ≅ ?
What about equilateral triangles? DO they meet the definition of Isosceles triangles? What is TRUE all the time for these Triangles?
SO how do you use this information?

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4.2 Special Triangles

  • 1. 4.2 Properties of Special Triangles pg. 204 to 209 Recalll from chapter 1 what an isosceles triangle is....
  • 2. Isosceles triangles are very special AND are used alot on the SAT... WHY??????? What do you know for sure if it is isosceles? YOU also know....
  • 3. PLEASE NOTE: Bottom of a triangle and BASE of a triangle MAY NOT be the same thing.... Which angles are ≅ ?
  • 4. What about equilateral triangles? DO they meet the definition of Isosceles triangles? What is TRUE all the time for these Triangles?
  • 5. SO how do you use this information?