1971 Canadian MO Problems/Problem 9

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Problem

Two flag poles of height $h$ and $k$ are situated $2a$ units apart on a level surface. Find the set of all points on the surface which are so situated that the angles of elevation of the tops of the poles are equal.

Solution

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See Also

1971 Canadian MO (Problems)
Preceded by
Problem 8
1 2 3 4 5 6 7 8 Followed by
Problem 10