If you mean all angles that meet at one point, it's 360°
Ratty
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An ACUTE angle is any angle between, but NOT including, 0 to 90 degrees. 0 degrres ; no angle 90 degrees ; right angle. Angles between 90 and 180 degrees are OBTUSE Angles between 180 and 360 degrees are REFLEX.
Only one, they are all 90 degree angles.
It has twelve angles but all of them need not be acute.
If it is a 'regular' hexagon, then all angles are congruent, and all are obtuse.
In an equilateral triangle, all of the angles are equal, which makes them all 60 degrees. Therefore, all three angles are acute.