Answer: Options 2 and 4
Explanation:
Option 1: The angles add to
, so the angles can form a triangle. However, because there are no side lengths, the triangle is only defined up to similarity.
Option 2: The angles do not add to
, so a triangle cannot be formed.
Option 3: The side lengths do not satisfy the triangle inequality, so a triangle cannot be formed.
Option 4: It is not specified what side the
is opposite of, so multiple triangles can be formed.