How many subsidiary triangles does a Sriyantra have?

State whether the following statement is True or False. Justify your answer.
"For every line $l$ and for every point $P$ not lying on a given line $l$,there exists a unique line $m$ passing through $P$ and parallel to $l$." This is known as Playfair's axiom.

State whether the following statement is true or false:
There are an infinite number of lines which pass through two distinct points.

Euclid divided his famous treatise "The Elements" into:

Given two distinct points,there is a ......... line that passes through them.

Read the following statement:
"$A$ square is a polygon made up of four line segments,out of which,length of three line segments are equal to the length of fourth one and all its angles are right angles".
Define the terms used in this definition which you feel necessary. Are there any undefined terms in this? Can you justify that all angles and sides of a square are equal?