Some undefined Terms - Point;Line and Plane

Give the correct matching of the statements of column A and Column B .Point are collinear Line is completely known Two lines in a plane Relations between points and lines in a plane collinear points A plane extends Indefinite number of lines Point,line and plane are

The number of lines that can be formed from 12 points in a plane of which 6 points lie on a line is

The number of lines that can be formed from 12 points in a plane of which 6 points lie on a line is

Consider the two 'postulates' gives below: (i) Given any two distinct points A and B, there exists a third point C, which is between A and B. (ii) There exist at least three points that are not on the same line. Do these postulates contain any undefined terms? Are these postulates consistent? Do they follow from Euclid's postulates? Explain.

Consider ‘postulate’ given below. There exist at least three points that are not on the same line. Do this postulate contains any undefined term ? Is this postulate consistent ? Do they follow from Euclid’s postulate ? Explain.

Line L has an undefined slope. Line M is perpendicular to line L. Which of the following could be the equation of line M?

Difference between lines, point and plane

Distance between lines, point and plane