Triangles

           

Types of…

 

Acute Triangle:

          all angles less then  

 

Right angled Triangle:

        1 angle =  

 

Isosceles Triangle

       

 

NB: the 2 angles are ALWAYS at the ends of the 2 equal sides

 

Equilateral Triangle

         ALL sides equal

ALL angles equal to  

 

All the angles inside a triangle ALWAYS add up to  

 

Angles in a Triangle

 

ie.