Quadrilaterals — Maths STD 9 — Question

Write the truth value (T/F) of the following statements:
Only a single line may pass through a given point.

The following statements are true (T) and which are false (F)?If two adjacent angles are equal, then each angle measures 90°.

Write the truth value (T/F) of the following with suitable reasons:
Line segment joining the center to any point on the circle is a radius of the circle,

The following statements are true (T) and which are false (F)? Give reasons.
If two parallel lines are intersected by a transversal, then alternate interior angles are equal.

The following statements are true (T) and which are false (F):
An exterior angle of a triangle is greater than the opposite interior angles.

The following statements are true (T) and which are false (F):
All the angles of a triangle can be less than 60°.

State whether the given statement is true of false.
Every real number is either rational or irrational.

Which of the following statements are true (T) and which are false (F)?
If three angles of a quadrilateral are equal, it is a parallelogram.

The following statements are true (T) and which are false (F)?
If angles forming a linear pair are equal, then each of these angles is of measure 90°.

State whether the following statement are true or false. Give reason for your answer.
Every natural number is a whole number.