Answer:
Angle A = 20 degrees
Explanation:
The sum of the angles of a triangle is 180
A+ B+ C = 180
2x+5x+11x = 180
Combine like terms
18x = 180
Divide by 18
18x/18 = 180/18
x = 10
Angle A = 2x = 2*10 = 20
Angle B = 5x = 5*10 = 50
Angle C = 11x = 11*10 =110