An altitude is the segment that is highest on a triangle so in this case the segment is FG It couldn't be line GF because we don't want the whole line we are only talking about the segment connected to the triangle. And it cannot be CF because it is not the highest segment. I hope this helps please give me a crown and a like if you think I deserve it and if you have any more questions just friend me and ask away.
Converse in discrete mathematics is switching the hypothesis and conclusion of a conditional statement.
So the correct answer will be that If a number is not divisible by two, then it is an odd number. Which is option D.
The math converse of a statement switches the if and then, resulting in a statement that may or may not be true so we have no guarantee that the preposition is true or not.