For this case we have the following equation:
 V = I * R
 Where,
 V: voltage
 I: current
 R: resistance
 By clearing R we have:
 R = V / I
 Substituting the values:
 R = (20) / (0.57)
 R = 35.09 Ohms
 Answer:
 The resistance of the light bulb is:
 R = 35.09 Ohms
        
             
        
        
        
Draw the triangle and then use Pythagoras' theorem
distance = 

              = 19.70 (2dp) 
 
        
        
        
Yea you got this the answer is easy
        
             
        
        
        
I THINK THE ANSWER IS...
<h2>people need to stay and tend their crops.</h2>
HOPE IT HELPS