None. A circle has no angles: it comprises a smooth curve.
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A circle.
Just the one and it is its radius when at right angles to the semi-circle's centre
It has no Right angels because it has a curving line all around! Simples!
None. A circle has no angles: it comprises a smooth curve.
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There are many angles inside a circle. You have inscribed angles, right angles, and central angles. These angles are formed from using chords, secants, and tangents.
A circle.
Just the one and it is its radius when at right angles to the semi-circle's centre
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.
It has no Right angels because it has a curving line all around! Simples!
No.
A circle.! or sphere
A circle does not have any angles.
a circle
Depends on the shape. A right triangle has one right angle, a rectangle has 4, an equilateral triangle has none, a circle has no angles. There are polygons with more than 4 right angles, and there is no limit on how many, but those with more than 4 are not convex.