- 
                  
Math
 - 
                  
Triangle properties
 - 
                  
Edad 13-15
 - 
                    
level: 7
 - 
                  
English
 
Author's Instructions
Finding missing angles of a triangles using the property sum of the angle in a triangle is equal to 180.
- 
                  
Math
 - 
                  
Triangle properties
 - 
                    
Edad 13-15
 - 
                    
level: 7
 - 
                  
English
 
Author's Instructions
Finding missing angles of a triangles using the property sum of the angle in a triangle is equal to 180.
