Measure of angle 2 would be 130 degrees because since it forms a linear pair the two angles added together have to equal 180 degrees so 
180 - 50 = 130
        
             
        
        
        
Answer:
The answer might be c
Step-by-step explanation:
 
        
             
        
        
        
Answer:
nca - gru is the correct answer
Step-by-step explanation:
 
        
             
        
        
        
it took me a while but the answer is 5/3
 
        
                    
             
        
        
        
Hello there!
The formula for finding the circumference of a circle is 2

r (or 2*3*r in your terms). Although we don't have the radius yet, we can certainly find it pretty easily. Keep in mind that the radius will always be half the diameter. So, let's find the radius.
8 / 2 = 4; now we have everything we need to solve for the circumference.
2*3*4 is our expression. Now let's simplify it.
2 * 3 = 6
6 * 4  = 24
Your circumference is 24cm. 
I hope this helps!