Explanation please and thank you

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.