Question 942684: Please help me solve this: the three angles in a triangle are in the extended ratio 3:9:12, Find each.
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! x, y, and z = the measures of the three angle, in degrees:
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3/9 = x/y
9/12 = y/z
x + y + z = 180
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put the system of linear equations into standard form
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9x - 3y = 0
12y - 9z = 0
x + y + z = 180
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solution:
x = 22.5
y = 67.5
z = 90
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