HOW MANY TRIANGLES CAN BE FORMED BY 87 STICKS?

• 43 can be formed
  first we use 3 sticks to form a triangle,remaining sticks=87-3=84
  now we use 2 sticks and form a triangle by using one of the sides of the triangle already formed.
  so 84/2=42+1=43 triangles
• 11 years agoHelpfull: Yes(56) No(1)
• 43. triangles..
  for odd numbers of sticks (n-1)/2
  for even number of sticks (n/2)-1
• 11 years agoHelpfull: Yes(20) No(2)
• no of triangle=(87-1)/2=43
  no of rectangle=43/2=21
  
• 11 years agoHelpfull: Yes(5) No(1)
• ANSWER=29
  TRIAGNLE can form 3 sticks.87/3=29.
• 11 years agoHelpfull: Yes(1) No(12)
• how many rectangles???
• 11 years agoHelpfull: Yes(1) No(0)
• IF WE USE COMBINATION THEN
  87
  C
  3
  
• 11 years agoHelpfull: Yes(1) No(2)
• 87-1/2=43
  
• 11 years agoHelpfull: Yes(0) No(1)
• answer is 86/2=43
• 11 years agoHelpfull: Yes(0) No(1)
• It has solved...:P :P
• 11 years agoHelpfull: Yes(0) No(0)
• 43 triangles can be formed !!!
• 11 years agoHelpfull: Yes(0) No(0)
• in this question, it is not mentioned, only sidewise sticks are placed; so, anyone can place in any order, forming small and large triangles (containing smaller ones) as well. what is the exact solution?
• 9 years agoHelpfull: Yes(0) No(0)