Question

a road roller makes 200 rotations in covering 2200m. find the radius of the roller

Answer 1

Answer:

1.75 m

Step-by-step explanation:

distance covered = 2200m

no of rotations = 200

distance covered in 1 rotation = 2200m/200 = 11m

circumference = 2*pie*r = 11m

r= 11m/(pie *2)

= (11m*7)/(22*2)

= 7/4 m

= 1.75 m