Chapter 11, Problem 3CR

To determine

To find: The value of $\angle 8$ .

Answer to Problem 3CR

  $m\angle 8={112}^0$

Explanation of Solution

Given information:

  $m\angle 4={112}^0$

Given

  $m\angle 4={112}^0$

Since $\angle 4$ and $\angle 6$ are alternative interior angles, they are congruent

So, $m\angle 6={112}^0$

Since $\angle 6$ and $\angle 8$ are vertically opposite angles, they are congruent

So, $m\angle 8={112}^0$

Therefore,

  $m\angle 8={112}^0$