Classica aplicação de regra de 3:
é dito que: 1 milha = 1,6km
Logo, eis a regra de 3:
   milha           km
      1   --------    1,6
      X  --------   240 
1,6X = 240.1
X = 240/1,6
<h3>X = 150milhas</h3><h3 />
Logo 240km equivalem a 150milhas
 
        
             
        
        
        
Answer:
3.1
4.2
5.2
42
Step-by-step explanation: Just copy the other cone and find half of the diameter to find the radius the cones are congruent.
 
        
                    
             
        
        
        
<em>Greetings from Brasil....</em>
As stated in the statement of the question, EF is a bisector of CD, so point G is the median point of CD, so CG = GD
5X - 1 = 7X - 13
X = 6
EF = EG + GF
6X - 4 = EG + 13      x = 6, so
6·6 - 4 = EG + 13
<h2>EG = 19</h2>
<em>(see attachment)</em>