Question

21. The radius of a wheel is 28 cm, what is the distance
covered by the wheel in making 500 revolutions?
(1) 440 m
(2) 880 m
(3) 390 m
(4) 780 m
please explain step by step ​

Answer 1

Answer:

circumference of the wheel=2xπxr

=2x22/7x28cm

=176cm

now, number of revolution=500

so, distance covered=500x176cm

=88000cm

=880 m

correct option:(2)880m

Answer 2

Answer:

880m

Step-by-step explanation:

given r=28cm

2*pi*r=2*22/7*28

         =2*22*4

           =176cm

Revolution:176*500

                    =88000cm

                    =880m

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