Which list shows the lengths of three line segments that could not form a triangle
6cm, 8cm, 10cm
5cm, 6cm, 7cm
4cm, 7cm, 13cm
3cm, 6cm, 6cm
6cm, 8cm, 10cm
5cm, 6cm, 7cm
4cm, 7cm, 13cm
3cm, 6cm, 6cm