Question

find the circumference of a wheel that makes 1130 revolution to go 2km. 33dm.91dm​

Answer 1

Given,

No of revolutions = 1130

distance travelled in first case = 2km = 2000m

Distance travelled in one revolution=2πr=Circumference

» 1130xcircumference = 2000m

or, circumference = 1.76m

case 2:

» 1130x circumference = 33dm = 3.3m

circumference = 2.92 x 10^(-3)m

case 3:

With same formula

circumference = 8.05x10^(-3)