Pls help me i will give brainliest

120°

Step-by-step explanation:

If the line were to continue down to form a triangle at the bottom, it would cross the line with an interior angle of 70°.  Since we have two of the angles, we subtract them from 180°.

180-70-50=60°

That would be the third interior angle at the top of the triangle.  Angle x is supplementary to that.

180-60=120°

%40

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2