Answer:
Largest angle is 105°
Smallest angle is 21°
The second angle is 54°
Step-by-step explanation:
Let the largest angle be x°
The smallest angle will be 1/5x°
The second angle will be x° - 51°
Angles in a triangle add up to 180° so;
x + x - 51 + 1/5x = 180
11/5x = 180 + 51 , 11/5x = 231 , x = 105°
Smallest angle is 1/5 × 105 = 21°
The second angle is 105 - 51 = 54°