PREVIOUS KNOWLEDGE

PREVIOUS KNOWLEDGE

1. What is a straight line and types

2. What is a a segment and a consecutive number

3. Classification of angles depending on their opening:

   • acute angle, right angle and obtuse angle

4. FUTURE KNOWLEDGE

   • Relationships between angles
     • angle addition and subtraction, complementary and supplementary angle, corner opposing angles, parallel side angles or shared side angles, and determined angles by two parallel straight-lines cut by a secant.
   • The opening of angles and the position
   • What is the sexagesimal system