It is just called a "central angle".
The VERTEX of the angle is always in the middle... so if it is angle ABC, then you can also name it CBA as long as the vertex letter is in the middle, usually there are only 2 ways to name an angle.Also, if there aren't any other angles with the same vertex, you can just call angle ABC, angle B.Summary: If you have an angle:the vertex is labeled B, the others are A and C. what can you call the angle?Answer: ABC,CBA or B
It is called a cone.
Yes. The center of a circle is the circles name
They're the 'base angles'.
The circle is the reflex angle, the square means it's a right angle.
A central angle.
you can name a vertex with b
The VERTEX of the angle is always in the middle... so if it is angle ABC, then you can also name it CBA as long as the vertex letter is in the middle, usually there are only 2 ways to name an angle.Also, if there aren't any other angles with the same vertex, you can just call angle ABC, angle B.Summary: If you have an angle:the vertex is labeled B, the others are A and C. what can you call the angle?Answer: ABC,CBA or B
by vertex or point
It could be called angle C, as long as that name is unambiguous.
sometimes the angle is referred to as a vertex, however that is not all of the time.
You use the points of the vertex and on the two sides. For example a right angle with a vertex of A and two sides B and C. would be Angle BAC
That's the "vertex" of the angle.
A circle is named by it's center point. For instance, let's say you have a circle, complete with chords, radii, a central angle, a center point, etc., etc. We'll say the central point is named "R." Therefore, your circle is named "Circle R."
a vertex
It is called a cone.
Yes. The center of a circle is the circles name