A bicycle wheel of radius 42cm is rolled over a distance of 66cm. How many revolutions does it make?
2 answers
66/42 = 1.57 times
Cir. = pi * 2r = 3.14 * 84 = 263.8 cm.
66cm * 1rev/263.8cm = 0.25 = 1/4 rev.
66cm * 1rev/263.8cm = 0.25 = 1/4 rev.
3 answers