The wheel of a tractor has a diameter 1.4m. What distance does it cover in 100 complete revolutions? [Take \(\pi = \frac{22}{7}\)]
- 140m
- 220m
- 280m
-
440m
The correct answer is: D
Explanation
radius = \(\frac{diameter}{2}\) = \(\frac{1.4}{2}\)= 0.7m
circumference = 2\(\pi r = 2 \times \frac{22}{7} \times 0.7m = 4.4m\)
distance covered = 4.4m x 100 = 440m