Question 737271:  Dear : The tutor 
I cant interpret this question ,kindly help me out 
How many different triangles can be made with a perimeter of 12matches. 
 Answer by MathLover1(20850)      (Show Source): 
You can  put this solution on YOUR website! The perimeter of a triangle can be found using:
 
 , where  ,  , and   are the lengths of the sides of the triangle.
 
You also have the rules: 
  
  
 
 
These are true for all triangles. 
The most important thing to be kept in mind is the triangle inequality theorem that says that the sum of any two sides is   than the third side 
 
If the sides do    this theorem, then the triangle is    
 
this is also good to remember: 
first triangle among many triangles with perimeter  , the most famous is the   triangle, the triangle with sides  ,  , and   (or a similar one.) Since  , we are assured by the converse of the Pythagorean theorem that the   triangle is right.
 
so, first solution is  
 
 
Keeping this in mind we get the following combinations:
 
 ..... ..   theorem,  the triangle is    
 .... ..   theorem,  the triangle is   
 
so, if  , the possible triangles, written  , are:
 
  
  
  
 
  | 
 
  
 
 |   
 
 |