Chapter 4.6, Problem 1ACYP

To determine

To explain:

The two unmarked congruent angles

Answer to Problem 1ACYP

The two unmarked congruent angles are $\angle FGJ$ and $\angle FJG$

Explanation of Solution

Given information:

  

From the given figure:

  $\angle FGJ$ is opposite to $\overline{FJ}$

  $\angle FJG$ is opposite to $\overline{FG}$

Therefore,

  $\angle FGJ\cong \angle FJG$

So, the two unmarked congruent angles are $\angle FGJ$ and $\angle FJG$