+0  
 
0
74
1
avatar

Let O be the center of a regular tetrahedron ABCD. find cosAOB

 Mar 29, 2022
 #1
avatar+122385 
+1

cos AOB  =   -1/3

 

Source : https://en.wikipedia.org/wiki/Tetrahedron#Angles_and_distances

 

 

cool cool cool

 Mar 29, 2022

8 Online Users

avatar
avatar