The radius of a circular wheel is 42 cm. Find the distance travelled by it in:

i) 50 revolution

iii) 200 revolution

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Solution

Solution:

Radius =42 cm

Circumference of circle =2×22/7×42
= 264 cm

1 revolution = Circumference of circle

Therefore:
a) 50 revolutions = 50 ×264 = 13,200
b) 200 revolutions = 200 ×264 = 52,800

(Answer)

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Similar questions

The radius of a circular wheel is 42 cm. Find the distance travelled by it in:

(i) 1 revolution;

(ii) 50 revolutions;

(iii) 200 revolutions;

The distance travelled by a wheel in one revolution is equal to its circumference.

1

The diameter of wheel is 0.70 m. Find the distance covered by it in 500 revolutions.

If the wheel takes 5 min. to make 500 revolution, find its speed in:

i) m/sec

ii) km/hr

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