Question

diameter of A wheel of a bus is 90cm in how many Revolution the wheel of a bus will cover the distance of 14.13 use pie =3.14​

Answer 1

Answer:

Now.

Distance = No of Revolutions of the wheel * Circumference ( Peripheri) of the wheel

Therefore,

No of Revolutions = Distance/Circumference of the wheel

                              =(1413000)/(2*pi*radius)

                              =(1413000)/(diameter*3.14 (∵2*radius =diameter))

                              =(1413000)/(3.14*90)

                              =5000 Revolutions of wheel.

Answer 2

Answer:

Soln: Given: diameter =90cm,distance =14.13

We know that,

radius =1/2 ×diameter

radius =1/2×90

radius =45cm

circumference of circle =2pi r

circumference of circle =2×3.14×45

circumference of circle =282.6 cm

now we turn km into m

14.13=14.13000

revolution =distance/circumference

revolution =14.13000/282.6

revolution =5ooo