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                                    A circular flower bed is surrounded by a path `4 m` wide. The diameter of the flower bed is `66 m.` What is the area of this path ? `(pi=3.14)` | 
                            
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Answer» If we create a diagram, we have two circles. One outer circle that is surrounded with `4m` wide path and inner circle that is circular flower bed. Diameter of flower bed ` = 66m` Radius of inner circle(flower bed) ` r = 66/2 = 33m` Radius of outer circle ` R = 33+4 = 37m` So, Area of the path, A = Area of outer circle - Area of inner circle `A = pi(R^2-r^2) = 3.14(37^2 - 33^2) = 280**3.14 = 879.2 m^2`  | 
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