SOLUTION: The measure of the angles of a triangle are 4x-1, 9x+1, and 5x. The triangle is?

Question 631756: The measure of the angles of a triangle are 4x-1, 9x+1, and 5x. The triangle is?
Answer by benni1013(206) (Show Source): You can put this solution on YOUR website!
What do we know:
1) The sum of the angles of a triangle equals 180 degrees.
THE SETUP
Angle 1 + Angle 2 + Angle 3=180
PLUG AND CHUG P1:
(4x-1)+(9x+1)+(5x+0*)=180>>4x+9x+5x=180>>18x=180>>x=10
We now know what x equals. Plug x back into originals to find the answer.
*Acting as a placeholder.
PLUG AND CHUG P2:
4(10)-1=39 ANGLE 1; 9(10)+1=91 ANGLE 2; 5(10)=50 ANGLE 3
CHECK:
Make sure your three angles add up to 180
39+91+50=180
The triangle is obtuse because one angle is obtuse.
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