1 second = <span>0.000000001 Giga seconds
500 * </span>0.000000001 = <span>0.0000005 Giga seconds</span>
I think that it is CD overbar equals XY overbar i think but i really don't know.
Larger I think, sorry if that’s wrong.
The sum of the two short legs must be at least as long as the longest leg.
This requirement for a triangle is NOT met by the 2nd selection. Those lengths cannot be a triangle.