9:59:59.000,9:59:59.000 Hello, friends! 9:59:59.000,9:59:59.000 We learned that the ray is a line segment 9:59:59.000,9:59:59.000 wjth a beginning point[br]to an endless point. 9:59:59.000,9:59:59.000 So it extends from one direction only. 9:59:59.000,9:59:59.000 But what happens if the line segment[br]extends from two directions? 9:59:59.000,9:59:59.000 If the line segment extends[br]from two directions 9:59:59.000,9:59:59.000 to an endless point[br]and we can't measure its length, 9:59:59.000,9:59:59.000 it's called a straight line. 9:59:59.000,9:59:59.000 And a straight line like, this, AB or BY 9:59:59.000,9:59:59.000 and a small line with two arrows above it. 9:59:59.000,9:59:59.000 My friends, I hope you learned[br]the difference 9:59:59.000,9:59:59.000 between the line segment, the ray,[br]and the straight line.