Which choice shows three lengths that cannot be the lengths of the three sides of a triangle

Answer 1

I cannot give a definite answer without knowing what the choices are, but keep this in mind: for any triangle, the sum of the lengths of the two shortest sides of the triangle must be greater than the length of the longest side. For instance, a triangle can be made from line segments of 6, 7, and 8 units (6 + 7 = 13 > 8), but not from line segments of 3, 4, and 8 units (3 + 4 = 7 < 8).

I hope this helped!