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  1. #1
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    triangle

    1. pic 2. Which angle of triangle RST is he largest?

    Angle R, S, T, or are they all the same.

    2. Pic 3. Which angle of triangle RST is he largest

    Angle R, S, T or are they all the same.

    3. Pic 5. angle R =

    A. 40 degrees
    B. 70 degrees
    C. 120 degrees
    D. 60 degrees
    Attached Thumbnails Attached Thumbnails triangle-pic-2.jpeg   triangle-pic-3.jpeg   triangle-pic-5.gif  
    Last edited by dgenerationx2; November 21st 2008 at 02:05 PM. Reason: forgot pics
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by dgenerationx2 View Post
    1. pic 2. Which angle of triangle RST is he largest?

    Angle R, S, T, or are they all the same.
    Hello again, dgen,

    I've given this to you in other posts. Remember this rule: The largest angle is opposite the longest side. Using this rule, you can easily tell

    Quote Originally Posted by dgenerationx2 View Post
    2. Pic 3. Which angle of triangle RST is he largest

    Angle R, S, T or are they all the same.
    Same as #1

    Quote Originally Posted by dgenerationx2 View Post
    3. Pic 5. angle R =

    A. 40 degrees
    B. 70 degrees
    C. 120 degrees
    D. 60 degrees
    You have an isosceles triangle here. The base angles are congruent. Looks like the base angles are 60 degrees each.
    What is the sum of the measures of the angles of a triangle? Subtract the two base angles and you have the vertex angle.
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