Similar Triangles

Discussion in 'Geometry and Trigonometry' started by nycmathguy, Jul 8, 2022.

  1. nycmathguy

    nycmathguy

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    College Algebra
    Chapter 1/Section 3

    Screenshot_20220707-192419_Samsung Notes.jpg

    For 9, by the Angle-Angle Case, both triangles are similar.

    For 10, by the Side-Angle-Side Case, both triangles are similar.
     
    nycmathguy, Jul 8, 2022
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  2. nycmathguy

    MathLover1

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    correct

    for 9 AA could also be called AAA (because when two angles are equal, all three angles must be equal)
     
    MathLover1, Jul 8, 2022
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    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    Very true. Very good.

    Note: We are still in Chapter 1, which is a review of the essentials of Algebra 1 and 2 and some Middle school geometry. College Algebra material remains a few chapters and/or sections away.
     
    nycmathguy, Jul 8, 2022
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  4. nycmathguy

    HallsofIvy

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    For the second problem, while the given angle is the same in both triangles, 4/3 is not 3/2 or, flipping one of the triangles, 3/3 is not 4/2. The triangles are NOT similar.
     
    HallsofIvy, Nov 28, 2023
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