A man observed the top point of a flag staff with an angle of elevation of 45° standing at a distance away from the bottom of the staff .
A man observed the top point of a flag staff with an angle of elevation of 45° standing at a distance away from the bottom of the staff . Find the distance between the man and the staff, if the height of the staff is 50 m.
A) 50 m
B) 60 m
C) 30 m
D) 22.5 m
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