<span>Arc length = C*(21/360)
so the answer is D</span>
        
             
        
        
        
Answer:
13. c, 
14. a.
Step-by-step explanation:
13.  The length of a side PQ with coordinates of
       P as (x,y)  and Q as (w,z) 
        is: 
-  so, the length of the side AB =



now, the easiest one will be when the vertices are on the coordinate axes.
- so, option c will be the most appropriate one.
14. If u see the figure clearly, the lines l and FH are parallel.
the parallel postulate, i.e, the alternate interior angles will always be congruent.
- here, the alternate interior angles are angle1 and angle4.
- therefore to prove this step, he used parallel postulate as a reason.
- so, the correct option is "a"
 
        
             
        
        
        
Answer:
the answer is here
plz mark as brainlist
Step-by-step explanation:
-2x-10=8
-2x=8+10
X= -18/2
hence X= -9
 
        
                    
             
        
        
        
Answer:
Here is the graph to the intercepts.
Step-by-step explanation:
Graph of (6, 4), (4, 3), (-2, 0)
Hope it helps :)
 
        
             
        
        
        
Answer:
9inch 
Step-by-step explanation: