..Ant is at midpoint of one end of tetrahedron of length 5cm.Shortest path length to travel to midpoint of opposite edge?

• The answer is 5, and here is the explanation
  
  But first lets see what a regular tetrahedron is:- It has four equilateral triangles, one at the base and other three stand on the edges of the base triangle and meet each other at the top.
  See this to clear confusions:- http://www.youtube.com/watch?v=Aro-_wFUpFo
  
  Since the ant is at the midpoint of one edge and it want to go to midpoint of another edge it has to travel :
  (From midpoint of source edge to the common vertex) + (from common vertex to midpoint of destination edge)
  
  2.5 + 2.5 = 5 cm Ans
• 11 years agoHelpfull: Yes(21) No(5)
• I think its root(2.5^2+2.5^2) = 2.5root(2)
• 11 years agoHelpfull: Yes(1) No(1)
• (((root 3)/2)*5)+2.5
  
  first rise up via height of traingle=1st term
  then up to middle point=2nd term
• 10 years agoHelpfull: Yes(1) No(0)
• @MD Please provide the correct answer if you know
• 11 years agoHelpfull: Yes(0) No(1)