Question

the diameter of A wheel of a car is 70 cm how many Revolution will it take to travel 210 kilometre

Answer 1

distance cover in one revolution =
$2\pi \: r$
= 2 x 22/7 x 35 x 10^-5

,= 220 x10^-5 km

no revo= 210 / 220 x 10^-5
= 21 x 10^5 / 22
= 105 x 10^4 11
= 100000 revolution

Answer 2

Step-by-step explanation:

⚡⚡ Hope this'll help U ✌ ✌

__☆☆☆☆☆_ Mark me as brainliest to get your 3 points back