Question

racetrack is in the form of a ring whose inner circumference is 352 m and outer circumference

is 396 m. Find the width of the track.

Answer 1

Hi !
I am telling you the formula.
Inner circumference = 352m
Outer circumference = 396m
Diameter of inner circle = πd = 352m
= 22/7 × d = 352m
= d = 352 × 7/22
= d = 16 × 7
= diameter = 112cm
Diameter of both circle = πd = 396m
= 22/7 × d = 396m
= d = 396 × 7/22
= d = 18 ×7
= d = 126m
Width of outer circle = 126m - 112m
= 14m/2
= 7m