The diameter the wheel of a car is 70 cm. How many revolution will it make to travel 1.65km
Answers
Answered by
2
Answer:
750 revolutions
Step-by-step explanation:
diameter = 70 CM
radius = 70/2 = 35 CM
distance travelled = 1.65 km => 1.65 × 1000 m => 1.65 × 1000 × 100 cm
=> 165000 cm
circumference = 2πr
=> 2 × 22/7 × 35
=> 2 × 22 × 5
=> 220 CM
now
number of revolutions => distance travelled / circumference
=> 165000 / 220 = 750 revolutions
Similar questions