Question

plz solve these problems with explanation first to give good answer will get best answer​

Answer 1

Step-by-step explanation:

1km = 100000cm

diameter(d) of the wheel = 70cm

radius(r) = d/2 = 35cm

circumference of the wheel = 2πr

=2 × 22/7 × 35 =220 cm

number of revolutions the wheel has to make to cover 100000 cm = 100000/220 = 10000/22

= 454.545 revolutions

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