Question

I need help on how to find these angles

Answer 1

I know angle t is a right angle so 90-30=60 so angle 3 is 60, now that I know angle 3, there are 180 degrees in a triangle so 90+60=150, 180-150= 30 angle 2 is 30, so for angle 1, 30+40=70, 180-70=110, angle 1 is 110 degrees :)