Answer:
Together, the boys ate 5/6 of the sandwich, leaving 1/6 of the sandwich left.
The angles diagonally opposite each other are congruent while those adjacent to each other add up to 180 degrees. You can get eight congruent angles with a transversal if the two lines are parallel, because each angle would be 90.
Step-by-step explanation:

Answer:
the answer is 12
Step-by-step explanation: