1. obtuse angle
2. angle angle
3. congruent lines
4. right angle
5. acute angle

the notion of line or straight line was introduced by ancient mathematicians to represent straight objects with negligible width and depth. Lines are an idealization of such objects, which are often described in terms of two points or referred to using a single letter

HOPE IT HELPS/SANA NAKATULONG

#CarryOnLearning