IMPORTANT DEFINITIONS ABOUT LINES AND ANGLES




PARALLES:THEY ARE LINES WHICH NEVER INTERSEC THEMESELVES SO ALL THEIR
 POINTS ARE EQUIDISTANCE

PERPENDICULAR:THEY ARE LINES WHICH MEET FOURMING FOUR RIGHT ANGLES

OBLIQUE:THEY LINES WHICH ARE NOT  PARALLES NEIGHTER PERPENDICULAR 

ANGLES:IT IS A FIGURE FORMED BY TWO RAYS (SIDES OF ANGLES) SHARING A COMMON END POINT ( VERTEX)

TYPES OF ANGLES :

COMPLEMENTARY ANGLES :THEY ARE COUPLES OF ANGLES WHICH PLUS IS NINETY GRADES

SUPLEMENTARY ANGLES:THEY ARE COUPLES OF ANGLES WHICH PLUS IS ONE HUNDRED AND EIGHTY  GRADES

ADYACENT ANGLES:THEY ARE ANGLES  THAT SHARE  ONE SIDE  AND THE VERTEX