2 angles of a triangle are the same size. the 3rd is 3 times as large as the 1st

36°, 36° and 108°

Step-by-step explanation:

let the equal angles be x then the third angle = 3x

The sum of the 3 angles in a triangle = 180°, thus

x + x + 3x = 180, that is

5x = 180 (divide both sides by 5)

x = 36

and 3x = 3 * 36 = 108

The 3 angles are 36°, 36° and 108°