How many distinct triangles can be drawn using three of the dots below as vertices?
+738 hmm I think a better approach to this problem is to use complementary counting.
There are \(\dbinom{6}{3}=20\) ways to choose 3 points to make a triangle. However 2 of these ways are just straight lines, so \(20-12=\boxed{18} \text{ triangles. }\)
I'm not sure if this is right, so please let me know if it's correct or not!
:)
