Answer:

Step-by-step explanation:
Because the leftmost triangle is a 45-45-90 isosceles right triangle, 
The rightmost triangle is a 30-60-90 triangle, and the side lengths are in the proportion
from shortest to longest. Therefore, 
Answer:
hmmmmmm
Step-by-step explanation:2
Answer:
203 miles
Step-by-step explanation: hope this helps
Answer:
I am not exactly sure about this, but if the triangle is isosceles, then the other two angles should both be 55 degrees.