SOLUTION: In a triangle, the second angle is twice the first and the third angle is 20% less than the first. Find the measure of all three angles. Thank You

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Question 31225: In a triangle, the second angle is twice the first and the third angle is 20% less than the first. Find the measure of all three angles.
Thank You
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
First angle = x
Second angle = 2x
THird angle = 0.2x
Total add up =180 by the sum traignle theorem:
x+2x+0.2x=180
3.2x=180
x=56.25

2(56.25)=112.5
0.2(56.25)=11.25
Hence, the three angles are 11.25, 56.25 and 112.5 degrees.
Paul.