Answer :
Answer:
b) 30 degrees
Step-by-step explanation:
Line segment JU is intersected by line T. This creates supplementary angles, and all supplementary angles are equal to 180 degrees. Since we know that one side of the angle is 110 degrees, we can do some subtraction and find the angle measure of the other side. 180-110=70. So, the other supplementary angles measurement is 70 degrees. Since we know that triangles are equal to 180 degrees, we can add the two known angles and subtract their sum to find the final angle. 80+70=150. 180-150=30. So, angle U or "?" is equal to 30 degrees.
