+0  
 
0
149
1
avatar+1159 

Help.

NotSoSmart  May 25, 2017
Sort: 

1+0 Answers

 #1
avatar+79823 
+1

 

Euler's formula says that

 

Faces + Vertices − Edges = 2

 

So

 

Faces + 13 - 28  = 2

 

Faces - 15  = 2       add  15 to both sides

 

Faces  =   17

 

 

cool cool cool

CPhill  May 25, 2017

31 Online Users

avatar
avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details