Answer:
the radius of the pool is 50.025 feet
Explanation:
From the information given:
We can have a schematic view of a diagrammatic illustration in our mind where the distance of the pool to Lincy is (20 + r ) and the distance to the tangent is 49.
So; by using pythagoras theorem, since the radius meets the tangent at a right angle; we have:




2001 = 40 r
r = 2001/40
r = 50.025 feet