関連ワード:  what is the meaning of line in maths    what is the meaning of row in maths    what is the meaning of line segment in math    what is the meaning of number line in math    what is the meaning of line graph in math    what is the meaning of parallel lines in maths    what is the meaning of straight line in maths    what is the meaning of transversal line in maths    what is the meaning of perpendicular line in maths    what is the meaning of vertical line in math