For variable radius value assigned is 10.
This variable is further used calculate area of circle using formula PI*radius*radius. The result is stored in another variable called areaOfCircle.
The result is logged as below
condole.log(areaOfCircle) // 314 metres
Since the value assigned for radius is 100, the PI*r*r results into 31400 metres.
To fix this, I have adjusted radius value to 10. Now the result will be 314 metres.