How many times a wheel of radius 28 cm must rotate to go 352 m?
Answers
Given : Radius of a wheel = 28cm
To find : How many times a wheel of radius 28 cm must rotate to go 352 m?
Solution : distance covered by wheel in 1 rotation = circumference
Radius = 28 cm
circumference = 2 πr = 2 × 22/7 × 28 = 176 cm
The required distance = 352m
= 352 × 100 cm
Thus, the number of times a wheel must rotate
= Total distance / circumference = 352 × 100 / 176 = 2 × 100
= 200 times
The wheel must rotate 200 times .
hence the answer is 200
Answer:
200 times
Step-by-step explanation:
Given : Radius of a wheel = 28cm
To find : How many times a wheel of radius 28 cm must rotate to go 352 m?
Solution : distance covered by wheel in 1 rotation = circumference
Radius = 28 cm
circumference = 2 πr = 2 × 22/7 × 28 = 176 cm
The required distance = 352m
= 352 × 100 cm
Thus, the number of times a wheel must rotate
= Total distance / circumference = 352 × 100 / 176 = 2 × 100
= 200 times
The wheel must rotate 200 times .
hence the answer is 200