Answer:
105
Explanation:
Hello There!
(Let x = angle T)
if you didn't know an exterior angle of a triangle is equal to its two opposite interior angles
So basically
155 (being the exterior angle) is equal to 50 + x (being the opposite interior angles)
so x = 155 - 50
155 - 50 = 105
so we can conclude that x (angle T) equals 105