Answer:
98 was the change in elevation
Step-by-step explanation:
 
        
             
        
        
        
Answer:
   13.636
Step-by-step explanation:
The area can be found using Heron's formula:
   A = √(s(s-a)(s-b)(s-c))
where s=(a+b+c)/2.
For the given triangle, ...
   a=9, b=4, c=12, s=(9+4+12)/2 = 12.5
   A = √(12.5(3.5)(8.5)(0.5)) = √185.9375 ≈ 13.636
The area of the triangle is about 13.636 square units.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
the coordinates of midpoint is average of x value of endpoints and average of y value of endpoints
 
        
             
        
        
        
Step-by-step explanation:
from the first shape bearing of C from D is the angle formed between the north pole and D = 100°
from the second second shape the bearing of C from D is the angle formed between the north pole and D= 235°
 
        
             
        
        
        
Answer: Enlargement
Step-by-step explanation: If the number is larger than 1 it is an enlargement if it is smaller it is a reduction.