A park is in the form of a rectangle. At the centre of the park there is a circular fountain. The area of the park excluding the fountain is 2086 m^2. The dimension of the park are 70m*65m. Find the radius of the fountain.
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area of circular fountain = area of rectangle - remaining area
= 70*65 - 2086 m^2
4550 - 2086 = 2465 m^2
=> 22/7 r^2 = 2464
=> r^2 = 784 m^2
=> r = 28 m
Option 9)
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