Question 484341
<pre>
The bigger the angle, the longer its opposite side.

{{{drawing(400,400/3,-1,11,-1,3,
locate(0,0,Y),locate(10,0,Z), locate(6.5,2.65,X),

triangle(0,0,10,0,6.65,2.1857493) )}}}

The longest side is YZ, and so the angle opposite it, X, is the
largest angle.

Edwin</pre>