Question

a circular road runs around a circular Garden. if the circumference of the outer circle and the inner circle are 100m and 88 M ,find the width of the road.

Answer 1

let outer radius = R

and inner radius = r

width of the road = R - r

given,

outer circumference = 100m

inner circumference = 88m

outer circumference - inner circumference= 100m - 88m

2πR - 2πr = 22m

2π(R - r) = 22m

(R - r) = 22m/2π

(R - r) = 11m/π

(R - r) = 11m/(22/7)

(R - r) = 11m × 7/22

(R - r) = 7m/2

(R - r) = 3.5m

hope it helps u