Math, asked by babulaljat760, 10 months ago

the inner circumference of a circular track is 220 m. the track is 7m wild everywhere. calculate the cost of putting fence along the outer circle at the rate of Rs2 per meter.​

Answers

Answered by Anonymous
1

Answer:

Inner circumference = 220

2 π r = 220

r *2* 22 = 220 * 7

r = 35 m [ inner radius ]

inner radius , r₁ = 35 m

outer radius , r₂ = 35 + 7 = 42 m

outer circumference = 2 π r ₂

= 2 * ( 22 / 7 ) * 42 = 264 m

Cost of fencing = Rs 2 * 264 = Rs 528

Similar questions