I believe just 1 because an equilateral triangle can only be reflected on one line for the halves to be the same
        
             
        
        
        
If you subtract 16 on both sides... x will be alone. Therefore 51-16=35
x=35 (B)
        
             
        
        
        
 Answer:
The surface of the triangular prism is 12 ft
Step-by-step explanation:
To find the surface area you have to multiply the base and the height and divide the product by 2
6 ft= base
4 ft= height
6 x 4 = 24
24 divided by 2 = 12
 
        
                    
             
        
        
        
Answer:
Right angled triangle
Step-by-step explanation:
There is a 90 degrees angle