You did not complete your question but I think this is what you are looking for. View the image.
The angels across from each other are the same. That makes the sides and the interior lines the same as well. So that means the lines cannot cross each other. They are parallel
Answer:
Step-by-step explanation:
Increase means his temp is going up. Just add.
99.2° + 3.4°
=102.6°