Raa رَاء
A tapped 'r', tongue tip on the gums. Heavy with Fatḥah/Ḍammah, light with Kasrah
Its shapes
Raa never joins the letter after it, so it only has two shapes.
Trace it with your finger
👄 Where the sound comes from
The tongue · ر
Most letters are made by the tongue touching or nearing the roof of the mouth or the teeth.