+0  
 
+1
90
1
avatar+63 

How many diffrent triangles can be drawn, each using three vertices of an octagon for the vertices of the triangle?

 Dec 16, 2018
 #1
avatar+34 
+2

The total amount is 8 choose 3 or 56 triangles.

 Dec 16, 2018

29 Online Users

avatar
avatar
avatar
avatar
avatar