Answer:

Step-by-step explanation:
From the question we are told that
Architect Measures 2.5 feet (using the Brussels measurement)
Generally in Brussels 
Therefore

Generally in Aalst 
Therefore Mathematically converting to feet in Aalst measurement we get
Cos (314) = .694 is positive
Answer:
1/4
Step-by-step explanation:
rise: 1, run: 4
8/10 = 4/5 would be the answer