What is the shortest distance between X and P ?



[ A ]    67.81 m
[ B ]    76.81 m
[ C ]    86.18m
[ D ]    None of these right
Answer : Option D
Explanation :

PX = √PY2 + XY2 

= √(40+10+10+10)2 + (50-10-10-10)2 

= √702 + 202 = √5300 = 72.80 m

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