I believe they are called the "Legs." They are also referred to as the opposite and adjacent sides. :)
I think it is 55 because 85-30 = 55
Hope this helps! :D
Answer:
Cathedrals
Step-by-step explanation: Trust my brain i studied this to
35a. We're asked to compute the ratio between the enlarged width and the original width. So we literally perform the operation:

35b. If the order is wrong the image would be shrunk instead of enlarged, with a ratio of 
36. We know that

Observe that
