Question

One circular wheel is to travel the distance by 44k.m in 4000 times to role the circle if find out the radius

Answer 1

Hi friend ✋✋✋✋
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Your answer
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Distance to be covered = 44 km = 4400000 cm

Number of revolutions in wich the distance is to be covered = 4000

Then,
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Circumference of the circle = 4400000/4000 cm = 1100 cm

Now,
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Circumference = 1100

2 π R = 1100

=> R = (1100 × 7)/(2 × 22)

=> R = 175 cm

HOPE IT HELPS

Answer 2

hiii!!!

here's ur answer...

ATQ,

the circular wheel travelled 44km in 4000 times.

1km = 1000m

therefore 44km = 1000 × 44 = 44000m

hence, circumference of the wheel = 44000/4000 = 11m

1m = 100cm

11m = 100 × 11 = 1100cm

therefore 2πr = 1100cm

==> 2 × 22/7 × r = 1100cm

==> 44/7 × r = 1100cm

==> r = 1100/1 × 7/44

==> r = 25 × 7

==> r = 175cm

VERIFICATION:-

circumference of the wheel = 2πr

= 2 × 22/7 × 175

= 44 × 25

= 1100cm

hence verified

thus the radius of the wheel is 175cm.

hope this helps..!!