Answer:
Angle B = 110
Angle S = 60
Longest angle = B
Shortest angle = T
Longest side = TS
Shortest side -= BS
Explanation:
Sum of total angles of an triangle = 180
So angle (B +S + T ) = 180
(2x + 50) + 10 + (x + 30) = 180
3x = 90
x = 30
So angle B = 110, S = 60, T = 10
Longest side of a triangle is the side opposite to obtuse angle (B) which is TS