Triangle inequality says that if $$a$$, $$b$$, $$c$$ are the lengths of a triangle, then

$$c \leq a + b$$.  

In other words, the length of any one side can't be greater than the combined length of the other two sides. And they're only equal when the triangle collapses to a straight line.

What is "triangle inequality"? That triangle exists... 

nout

south_korea_ln

science

Can you solve it? The simple geometry question that fools almost everyone

kek, first one almost got me.  $$x=0$$ because triangle inequality. I'll just leave it at that.