Chapter 11.1, Problem 19IP

To determine

To find: $\angle 4$

Answer to Problem 19IP

  $m\angle 4={52.6}^0$

Explanation of Solution

Given information:

  $m\angle 6={52.6}^0$

From the given figure

We can say that $\angle 6$ and $\angle 4$ are Vertical angles.

As we know that the vertical angles are congruent.

So,

  $m\angle 4={52.6}^0$

Therefore,

  $m\angle 4={52.6}^0$