Incenter radius

[bigbill]

Apart from using the formula - radius = 2* area/ perimeter , if we know the 3 side lengths of a triangle, is there another method to find it's diameter ? Thanks.

 

[stapel]

Apart from using the formula - radius = 2* area/ perimeter , if we know the 3 side lengths of a triangle, is there another method to find it's diameter ? Thanks.

Triangles don't have diameters, that I'm aware of. Are you perhaps referring to some circle that is related to the triangle? Also, in your "formula", from what are you subtracting the "radius"? Thank you!

 

[Deleted member 4993]

Apart from using the formula - radius = 2* area/ perimeter , if we know the 3 side lengths of a triangle, is there another method to find it's diameter ? Thanks.

Yes - there are several representations of the formula above.

Have you done a Google search?