Question

2.) If ZA = (20 – 2m)º and ZD = (m – 130°, what is the value of m? ​

Answer 1

m = 50

Explanation:

∠ D and ∠ A are vertically opposite angles and are congruent , then

m - 130 = 20 - 2m ( add 2m to both sides )

3m - 130 = 20 ( add 130 to both sides )

3m = 150 ( divide both sides by 3 )

m = 50