How many different triangles can be formed using three vertices of a hexagon as vertices of a triangle? [asy]size(75);
draw(dir(0)--dir(30)--dir(110)--dir(175)--dir(250)--dir(300)--cycle);
[/asy]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
How many different triangles can be formed using three vertices of a hexagon as vertices of a triangle? [asy]size(75);
draw(dir(0)--dir(30)--dir(110)--dir(175)--dir(250)--dir(300)--cycle);
[/asy]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
20
How many different triangles can be formed using three vertices of a hexagon as vertices of a triangle? [asy]size(75);
draw(dir(0)--dir(30)--dir(110)--dir(175)--dir(250)--dir(300)--cycle);
[/asy]
train