It appears that you got distracted by the 'A B C D E F', and forgot to
give us the list of choices.
The ratio of the lengths of the two legs of a 30-60 right triangle must be
one of these:
-- sqrt(3)
-- 1.732 (rounded)
-- 1/3 sqrt(3)
-- 0.577 (rounded)
-- 1/sqrt(3)
Yes and the given lengths would form an isosceles triangle.
Any number between 3 and 15
The last side length could be between 4 units and 10 units inclusive.
You could have an isosceles triangle with sides 3, 3, and 2. I think that's the only one.
If you mean lengths of 33 by 56 by 65 then the given dimensions will form a right angle triangle.
If its a right angle triangle then its side lengths could be 3, 4 and 5
Yes and the given lengths would form an isosceles triangle.
Any number between 3 and 15
If any of its 2 sides is not greater than its third in length then a triangle can't be formed.
1:square root 3
It can't.
The last side length could be between 4 units and 10 units inclusive.
Yes
Yes.
The sides of a triangle are its lengths are cannot be negative. However, you could place a triangle on coordinate system and some points where the vertices are could be negative numbers.
The list that accompanies the question doesn't contain any numbers that could be the lengths of the sides of a triangle.
7cm