Question

∠A

and ​
∠B
​ are vertical angles with
m∠A=x
and
m∠B=5x−80
.
What is
m∠A
?

Answer 1

A=20

Explanation:

Answer 2

∠A = 20

Explanation:

Given:

Vertical angles

∠A=x

and

∠B=5x−80

Find:

∠A

Computation:

∠A = ∠B

x = 5x - 80

4x = 80

x = 2o

∠A = 20