If all of the diagonals are drawn from a vertex of a hexagon, how many triangles are formed?

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asked Apr 28, 2018 45.9k views

2 Answers

Drecute · Answer 1 · 2018-04-29T08:10:29+0000

If we consider it as a combination problem, then we could calculate the how many combinations are there if we pick up three nodes out of six nodes, and then we have:

C_(6)^(3)= (6*5*4)/(3*2*1) =20

And the answer should be 20

If all of the diagonals are drawn from a vertex of a hexagon, how many triangles are formed?

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