Step-by-step explanation:
the answer is in the image above 
 
        
             
        
        
        
I think it should be 1.7?
a^2 + b^2 = c^2
c^2 = 16
Square root of 16 is 4.
1 + 3 = 4
Square root of 1 is 1 and square root of 3 is given, which is 1.7.
An equilateral has two right triangles out together, so basically that would be a rectangle. 
1 x 1.7 = 1.7
        
                    
             
        
        
        
I think the answer is x=60
        
             
        
        
        
Answer:
The answer is 13 hope it helps!<3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
71 degrees
Step-by-step explanation: