Question

circular fish pond has a diameter of 14 metre the pond is surrounded by a concrete path 1.75 metre wide find the area of the path

Answer 1

diameter=14m
radius=7m
area of whole pond including the path=22/7* radius²
                                                                        =22/7* 7²
                                                                      =154m²
area of iner circle without the path
14-1.75 -1.75 =10.5[diameter]
radius=5.25

=22/7* radius²
  =22/7* 5.25²
  =86.625m²
area of path=area of whole pond including the path-area of iner circle without the path
                        =154-86.625
                    =67.375m²