There is an inequality for a triangle with sides a; b; c that must always hold :
a+b>c
b+c>a
a+c>b
Using this , let 's check if there is a triangle with sides 3,5 ; 3,5 ; 9
3,5+3,5<9
From what we can conclude that such a triangle does not exist
And what is said in the problem is that it is possible to make an isosceles or equilateral out of it , it is said the other way around to get it . In fact, this triangle will not exist
