Question

A race track is in the form of a ring whose inner circumference is of 396 m and
outer
circumference is of 440 m. Find the width and area of the track.​

Answer 1

Answer:

width of the track=7m. area of the track=931πm2

Answer 2

Answer:

Step-by-step explanation:

radius of inner circumference = 2 µ r

                                       396     =2 x 22/7 x r

                                       396/2=22/7 x r

                                        198x7/22=r

                                         r=63

radius of outer circumference = 2πr

                                       440    =2 22/7 r

                                      440/2= 22/7 x r

                                220x7/22=r

       

                                                r=70

WIDTH OF THE TRACK = 70-63

                                        =7m

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