i think there's four
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360
360 degrees
Four of them because 4*90 = 360 degrees which is a full revolution
1 revolution = 360o 1 right angle = 90o Thus 360o ÷ 90o = 4 right angles in one revolution.
There are actually quite a few more phases of matter, but the commonest three known are solid, liquid, and gas. Some texts cite as many as fifteen. At super-cold temperatures a phase with unusual properties, known as BEC can be manifest (Bose-Einstein Condensate); at very high temperatures, electrons can dissociate from their atoms in the Plasma phase. Between and within phases are sub-phases, sone of which describe matter during changes in phase (phase transition) and some of which are stable.