question_answer

A pole stands vertically inside a triangular park ABC. If the angle of elevation of the top of the pole form each corner of the park is same, then the foot of the pole is at the

A) Centroid

B) circumcentre

C) Incentre

D) orthocentre

Correct Answer: A

Solution :

[a] The foot of the pole is at the centroid. Because centroid is the point of intersection of medians, AD, BE and CF, which are the lines joining a vertex with the midpoint of opposite side.