Answer:
should be 1350cm^2 
Step-by-step explanation:
hope this helps
 
        
                    
             
        
        
        
Answer:
 Questions 3
X+100+130=360
X+230=360
X=360-230
X=130
Step-by-step explanation:
a+b+c=180
50+50+50=180
150=180
a+b+c=180-150
 =30
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Factoring  results in
 results in 