Question

Difficult Puzzle! A square lawn of side 100m has a circular flower bed in the centre. If area of lawn, excluding flower bed is 8614 m^2...A square lawn with side 100 m long has a circular flower bed in the centre. If the area of the lawn, excluding the flower bed is 8614 m^2, the radius of the circular flower bed is

Answer 1

10000-8614 = 1386 ..... then pi*r^2 = 1386 so r = 21m

Answer 2

its too simple yaar (100m)^2 is 10000m^2
10000^2 - 8614m^2=1386m^2
πr^2=1386
r^2=1386*7/22(transposing phi)
r^2=63*7
r^2=441
r=√441
r=21m
hope it helps you frnd