Question

Please help with step by step if you can​

Answer 1

m<1 = 20°

Explanation:

m<L = m<Z = 70°

=> m<1 = 180° - 90° - m<Z

=> m<1 = 180° - 90° - 70°

=> m<1 = 20°

Answer 2

The answer is 20 degrees

90-70