3 angles
Without overlapping, 4.
8
12
A full rotation is a 360 degree rotation. A full circle is 360 degrees.
It takes 4 90 degree angles to make a full circle
3 angles
Without overlapping, 4.
8
12
A full circle has 360 degree; each degree has 60 minutes; each minute has 60 seconds. Multiply those three numbers to get the desired answer.
A full rotation is a 360 degree rotation. A full circle is 360 degrees.
Infinite angles. If you are referring to degrees then the answer is 360, but if the question is angles I can get as many angles as I want inside a circle.
A circle does not have any angles.
One
A circle comprises 360 degrees. So, a fourth of a circle is 360/4 = 90 degrees.
None: a circle has no angles, and certainly no acute ones.