How many triangles can you form if you draw all the diagonals of a hexagon?
12
14
16
18

Question

How many triangles can you form if you draw all the diagonals of a hexagon? 
    12
    14
    16
    18

carniel · Answer

Hexagon = 6 sided figure so it should be 12 triangles

.sam. · Answer

6 triangles (because a hexagon has 6 sides).

carniel · Answer

Thats not a answer choose and thats wrong

.sam. · Answer

If you're talking about drawing triangles inside a hexagon you end up with 4 because the formula is ,number of sides -2

anonymous · Answer

@.Sam.: How can it be 4?. there are 9 diagonals

anonymous · Answer

The answer is 4 when you draw all diagonals from only one vertex.

anonymous · Answer

First choose a diagonal. In 9 ways.
Then choose any other point. 4 points left. Can be chosen in 4 ways.
Therefore. 36 trangles/3 because of repitition.

anonymous · Answer

Answer is hence 12.

anonymous · Answer

REpitition is because you can land up with the same triangle in three different ways (through the given points/ diagonals again)

carniel · Answer

Yes Sid I said that. They keep saying wrong answers....

anonymous · Answer

Carniels right man. :D

carniel · Answer

^_^ Thanks Sid

.sam. · Answer

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carniel · Answer

Sam you you didn't even go to the other ones...

.sam. · Answer

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anonymous · Answer

Dude. Thats one vertex.  Actual way to look at this is. 6 points. To make a diagonal you need two points. Therefore 6C2 ways = 15. - 6 as the sides will also come in our calculation.

carniel · Answer

Btw you choose one to start from not all the others.

anonymous · Answer

Thats Correct. 9 diagonals it is. :)