Answer:
She completed 210 revolutions
Step-by-step explanation:
Firstly here, we will calculate the distance covered in a single revolution
Mathematically, that is the distance equivalent to the circumference of the circle
That will be ;
2 * pi * r
= 2 * 3.142 * 43 = 270.212 cm
So this is the length of one revolution
Now, we know that ;
1000 cm is 1 km
so x cm is 56.75 km
x = 56.75 * 1000 = 56750 cm
So the number of revolutions in 56750 cm distance will be ;
56750/270.212 = 210 revolutions
