Take three sticks of 1cm, 3cm, 4cm, 4cm, 4cm, 5cm to form a triangle, which can put several different triangles

Take three sticks of 1cm, 3cm, 4cm, 4cm, 4cm, 5cm to form a triangle, which can put several different triangles

According to the fact that the sum of the two sides of a triangle is greater than the third side, there are 3cm, 4cm, 4cm; 3cm, 4cm, 5cm; 4cm, 4cm, 4cm; 4cm, 4cm, 5cm
A total of four different triangles can be formed

In group (), three sticks could not form a triangle, a.3cm 3cm 2cm b.2cm 4cm 5cm c.3cm 5cm 1cm

C.3+1＜5,
Can't be surrounded

Among the following groups of line segments, the one group that can form a triangle is a: 0.5cm, 1cm, 1.8cm; B: 1cm, 2.5cm, 3cm; C: 2cm, 2cm, 4cm

B
The sum of the two sides of a triangle must be greater than the third side