Answer:110 degrees
Step-by-step explanation:
L1 and L2 are parallel so the angle above angle 1 is 70 degrees too. Then the angle that is right next to that 70 degrees is 110 because a straight line equal 180 degrees. And whatever angle that is diagonal from angle 1 is the same degrees. So, since it's 110 degrees diagonal from angle 1 then angle 1 is also 110 degrees.
