HHELP AH

∠B = 79

Step-by-step explanation:

Vertical angles are congruent ( equal to each other )

This means that ∠A = ∠B

If ∠A = 6x - 11 and ∠B = 5x + 4 then 6x - 11 = 5x + 4

Now solve for x

6x - 11 = 5x + 4

add 11 to both sides

6x = 5x + 15

subtract 5x from both sides

x = 15

We want to find the measure of ∠B

To do so we simply plug in the value of x into 5x + 4

∠B = 5x + 4

x = 15

∠B = 5(15) + 4

Multiply 5 and 15

∠B = 75 + 4

add 75 and 4

∠B = 79

And we are done!