Geo 8.2 notes_p2_30
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Geo 8.2 notes_p2_30

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Geo 8.2 notes_p2_30 Geo 8.2 notes_p2_30 Presentation Transcript

  • 8.2 Special TrianglesPart 2: 30-60-90Objective: Use special triangles to solvemissing parts.Standard: Geometry 20.0
  • Review of 45-45-90 TriangleRatio: _____:_____:______How do we get it?Ex) 20
  • The 30-60-90 Triangle (Half of an equilateral triangle) 2 4 View slide
  • 6 16 View slide
  • The 30-60-90 Ratio-x
  • Ex. 1) Find the missing sides of the triangle. 14 30° 60° 9
  • Ex. 2) Find the missing sides of the triangle. 75 9 30° 60°
  • Ex. 3) Find the missing sides of the triangle. 25√3 30° 60° 75
  • Summary:45-45-90Given one leg, leg2 is _____ and thehypotenuse is ______Given hypotenuse, legs 1 and 2 are _____30-60-90Given short leg, mid leg is _____ andhypotenuse is ______ the given side.Given mid leg, short leg is _____ andhypotenuse is ______ the given side.Given hypotenuse, short leg is _____ andmid leg is _____ the given side.