A wheel has diameter 42 cm; then how far does the wheel go (in meters) in 12 revolutions?

1584 m 21.70 m 2170 m 15.84 m

15.84 m

Distance covered by wheel = circumference               = 2 \(\pi \) r or \(\pi \) d               = \(\frac{22}{7}\) × 42 = 132 Total distance = circumference × 12 = 132 × 12 = 1584 = 15.84 m