I) 156 degrees
The exterior angle is 180-156
=24
The number of sides= 

The number of sides= 15 sides
ii) 162 degrees
The exterior angle= 180-162
=18
The number of sides= 

= 20 sides
 
        
        
        
Answer:
1. b d
2. is c or d
3. a or c
4. b or c
5. c
Step-by-step explanation:
 
        
                    
             
        
        
        
The answer is 7 R14
That the answer
        
             
        
        
        
Answer:
5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: 200-300 liters
Step-by-step explanation: Each trough should be able to hold at least 200-300 litres of water with a minimum flow rates of 10 litres/minute. Trough volume can be reduced to about 100 litres if the flow rate is increased to 20 litres/minute. Likewise, how many gallons is a 2x2x4 tank?