medals rewarded!
How many triangles can you form if you draw all the diagonals from one vertex of a pentagon?
a.2 triangles
b.4 triangles
c.3 triangles
d.5 triangles

Question

medals rewarded!
How many triangles can you form if you draw all the diagonals from one vertex of a pentagon?
a.2 triangles
b.4 triangles
c.3 triangles
d.5 triangles

terenzreignz · Answer

<shrugs>
Let's just draw one...|dw:1373897241471:dw|

terenzreignz · Answer

And let's choose this vertex... (it doesn't really matter which)|dw:1373897270142:dw|

terenzreignz · Answer

Now, a diagonal is a line segment joining a vertex with another vertex WHICH IS NOT adjacent to it... means not these vertices...|dw:1373897300816:dw|

terenzreignz · Answer

So let's draw...|dw:1373897320762:dw|
So... @bettni ....
how many triangles? :P