the diameter of a wheel of a car is 77 cm. find the distance covered by the wheel in 500 revolution.
Answers
Answered by
7
Answer:
1.21 km
Step-by-step explanation:
Here Diameter of wheel = 77 cm
We know that:
Distance Covered in one Revolution = Circumference of wheel
= π × 77 cm [∵ Circumference = 2π×radius or π×diameter]
= (22/7)×77 cm
= 242 cm
Distance covered in one revolution = 242 cm
Distance covered in 500 revolutions
= 242 × 500
= 121000 cm or 1.21 km [∵ 1 cm = 1/100000 km]
Hence, 1.21 km covered in 500 revolutions.
pawan1491:
yaar circumference = 2 πr
Yes and circumference = pi ( diameter) too... in 2(pi)(r) you can put diameter in place of 2r directly because 2r = diameter. You don’t need to calculate radius :)
No brother
yes brother...ok tell me isn't 2(r) = diameter..?
Similar questions