Question

For which value of x is line n parallel to line m?

Answer 1

x = 70°

Explanation:

Top angle of the triangle is 80° as vertically opposite angles are equal

Bottom left angle of the triangle is 30° as alternate angles are equal

180 = 110 + x as angles in a triangle add up to 180

x = 70

The alternate angles are equal as both m and n are parallel at angle x