Ashwin Muralidharan IIT Madras
Last Activity: 12 Years ago
Hi Halak,
The incentre will be a co-ordinate. None of the option is in the co-ordinate format.
If it is inradus "r" that you are looking for,
Then r = area/semi-perimeter
Find a,b,c from distance formula. Then find area by Herons formula.
And s = (a+b+c)/2
And hence find the inradius.
You have a = 2root(2), b = root(2), and c = root(2).
Oh !!!, please note, the given points cannot represent a triangle, as they are collinear and lie on the same straight line.
So inradius = 0.
Hope this helps.
Best Regards,
Ashwin (IIT Madras).