Question 31225
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.