Question

∠A and \angle B∠B are vertical angles. If m\angle A=(7x-20)^{\circ}∠A=(7x−20)

Answer 1

Answer:

           m∠A = 113°

Step-by-step explanation:

Vertical angles have the same measure

m∠A = m∠B

7x - 20 = 6x - 1

7x - 6x = 20 - 1

  x = 19

m∠A = (7x-20)° = (7•19 - 20)° = (133 - 20)° = 113°