SOLUTION: My daughter needs help with Geometry, I do not know how to do it. The problem is: The measures of the three angles of a triangle are 10x-3, 4x-20, x+3. Find the vaule of x then cla

Question 529738: My daughter needs help with Geometry, I do not know how to do it. The problem is: The measures of the three angles of a triangle are 10x-3, 4x-20, x+3. Find the vaule of x then classify the triangle by its angles.
Thank you very much!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The measures of the three angles of a triangle are 10x-3, 4x-20, x+3. Find the vaule of x then classify the triangle by its angles.
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The angles of a triangle always total 180 degs
10x-3 + 4x-20 + x+3 = 180
15x - 20 = 180
15x = 200
x = 40/3
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10*(40/3) - 3 = 391/3 degs = 130.333... degs
4*(40/3) - 20 = 100/3 degs = 33.333... degs
40/3 + 3 = 49/3 degs = 16.333... degs
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Obtuse triangle

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