Answer:
Yes, 102 isn't a square number (1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144) so the square root of 102 will keept going forever and is irrational.
Step-by-step explanation:
basically
 
        
             
        
        
        
Set up a proportion. Let h = the statue height. h/statue shadow = boy height/boy shadow. 
h/25 = 4.5/3.6
Cross multiply and solve for h.
        
             
        
        
        
Answer:
Do you still need help??
Step-by-step explanation:
 
        
             
        
        
        
5/6= c/9 
Cross mutiple. 5* 9= 45 . c*6
45= 6c 
divide by 6 for 45 and 6c
45/6= 6c/6
45/6= c 
Reduce 45/6. Divide by 3
45/3, 6/3
15/2= c
Answer: c= 15/2 or in decimal form , c= 7.5