Which of the following statements are true., (T) and which are false (F)?
(i) Angles forming a linear pair are supplementary. (ii) If two adjacent angles are equal, then each angle measures 90∘. (iii) Angles forming a linear pair can both be acute angles. (iv) If angles forming a linear pair are equal, then each of these angles is of measure 90∘.
If angles forming a linear pair are equal, then each of these angles is of measure 90∘.