1.      Concept:

Square is a 2D shape with four equal sides and four equal right angles that is 90 degrees. The area of the square can be found using S = s*s.

 

2.    Process skills:

                                                       I.            Open GeoGebra in the desktop   

 

                                                    II.            Insert a line segment   that have P-A and P-B           

 

                                                 III.            Insert two perpendicular lines                             

 

 

                                                 IV.            Draw a circle using circle with center from point A to point B   

 

                                                    V.            Insert Point C right at the top on where the intersects.  

 

 

                                                 VI.            Insert perpendicular line on point C and then add point D on the intersection. 

 

 

                                              VII.            Remove all the perpendicular lines and circle using the show option.

                                           VIII.            Start joining the points from A to C, C to D, D to B. 

 

 

                                                 IX.            Insert polygon using polygon.

  

 

 

 

 

 

 

 

 

 

 

 

3.      Product skills:  Square