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Posted by on Wednesday, March 10, 2010 at 10:43am.

In a triangle ABC, angle B is three times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.

  • Algebra - , Wednesday, March 10, 2010 at 11:00am

    B = 3A
    C = 6A -5

    Since triangles have 180 degrees:

    A + 3A + 6A - 5 = 180

    Solve for A and then insert that value into the first two equations to solve for b and C.

  • Algebra - , Sunday, September 25, 2016 at 2:21pm

    34

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