<span><span>aha gülüyor ...............</span>
</span>
Answer: (b)
Step-by-step explanation:
Given
R is inversely proportional to A i.e
![R\propto \dfrac{1}{A}\\\\R=\dfrac{C}{A}\quad [\text{C=Constant}]](https://tex.z-dn.net/?f=R%5Cpropto%20%5Cdfrac%7B1%7D%7BA%7D%5C%5C%5C%5CR%3D%5Cdfrac%7BC%7D%7BA%7D%5Cquad%20%5B%5Ctext%7BC%3DConstant%7D%5D)
when 
Insert the values to get C

When A=250

option (b) is correct
We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel.
Unlike parallel lines, perpendicular lines do intersect. Their intersection forms a right, or 90-degree, angle.
Answer :
x 
Step-by-step explanation: