9514 1404 393
Answer:
 20°, 120°, 40°
Step-by-step explanation:
Let s represent the smallest angle. Then the largest is (100+s) and the third angle is (2s). The sum of angles in a triangle is 180 degrees, so we have ...
 s + (100+s) +(2s) = 180
 4s = 80 . . . . . . . . . . subtract 100
 s = 20 . . . the smallest angle
 100+s = 120 . . . the largest angle
 2s = 40 . . . the third angle
The angle measures are 20°, 120°, and 40°. Â