VOCABULARY: UNIT 2

 

                                                             VOCABULARY UNIT 2 

1. Definitions and classification about triangle

  Triangle: it is a flat figure with 3 sides and 3 angle.

                      ACCORDING TO THE SIDE:       
                               
                           Equilateral triangle: has 3 sides equals and angles too.
                           Isosceles triangle: has 2 sides equals and 2 angles too.
                           Scalene triangle: has 3 sides diferents.
                   
                       ACCORDING TO THE ANGLES:

                           Right triangle: has 1 angle of  90º.
                           Acute triangle: has 3 angle ⟵  90º
                           Obtuse triangle: has 1 angle ⟶ 90º
 
                 2. Definitions of quadrilaterals:
Quadrilaterals: there are polygons with 4 sides and 4 vertices  (angles)