B. <span>2x + 4 = 49
It is because a triangle has 2 sides and the question shows that 2 triangles equal the same so that becomes 2x. The third side is 4 so u add that to 2x which becomes 2x+4 and the perimeter equals 49 so basically the equation should be </span>2x + 4 = 49.
<u>ANOTHER EXPLANATION:
</u>The equation for perimeter is P=L+W
SO SUBSTITUTE ALL THE NUMBERS THAT ARE INCLUDED IN THE QUESTION AND THEN U CAN GET UR ANSWER.
        
                    
             
        
        
        
Answer:
Yep
Step-by-step explanation:
 
        
             
        
        
        
Answer:
She needs to do 39 more rotations.
Step-by-step explanation:
45-6=39
 
        
                    
             
        
        
        
Apparently it’s all of them
        
             
        
        
        
Answer:
The answer is 72° I believe 
Step-by-step explanation: