Answer:
She did not establish that heights are the same.
Step-by-step explanation:
I just answered it.
 
        
                    
             
        
        
        
Answer:
a) 94.2 cm
b) 78.5%
Step-by-step explanation:
a) since the square side = 30 cm
it means the diameter = 30 cm
then circumference of the largest circle that can be cut = 3.14×30 = 94.2 cm
b) the perimeter of the square = 30×4 = 120
94.2 for 120
x% for 100%
x = (100×94.2)/120 = 9420/120 = 942/12 = 78.5%
 
        
             
        
        
        
Answer: 121.836
Step-by-step explanation: So the first thing you need to do is:
31.24         
x3.90           you need to put the zero there because the decimal points would need to match up.
_____
Once you do that just put the decimal down. Like this:
31.24         
x3.90
____           Once you do that just ignore the decimal and multiply.
    .
Once you have finished, the answer should be 121.836.
Hope I Helped!
:)
 
        
             
        
        
        
answers B and D are clearly wrong and if u do some simple thinking you can determine the answer is C...
Have a fantabulous day! :)
 
        
                    
             
        
        
        
1. 8 
2. 15
3. 2
4. 1/2 
5. 3 
those are the answers in order, hope this helps!