A) \[201\]
B) \[120\]
C) \[205\]
D) \[435\]
Correct Answer: C
Solution :
Required number of triangles, \[{{=}^{12}}{{C}_{3}}{{-}^{3}}{{C}_{3}}{{-}^{4}}{{C}_{3}}{{-}^{5}}{{C}_{3}}\] \[=220-1-4-10\] \[=205\]You need to login to perform this action.
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