Oh, dude, you're talking about "angle pairs" here. So, the formula is n(n-1)/2, because each pair of rays forms an angle. It's like when you're at a party and everyone's chatting - there's a lot of angles being formed, man.
What about them?These are known as opposite rays. They form a line.
A figure consisting of two non-collinear rays with a common endpoint is known as an angle. The common endpoint is called the vertex, while the two rays are referred to as the sides of the angle. Angles are measured in degrees or radians, indicating the amount of rotation from one ray to the other. This geometric concept is fundamental in various fields, including mathematics, physics, and engineering.
Six angles.
An angle is formed by two rays with a common endpoint.
vertical opposite equal angles
-- Two rays with a common endpoint form an angle. -- If they have a common endpoint, then they are collinear. So I guess, technically, the conditions described in the question aren't possible.
It's an angle.
angle
What about them?These are known as opposite rays. They form a line.
all it is, is two rays in the same line that end with the same endpoint
An angle is the intersection of two rays with a common endpoint. Adjacent Angles are 2 angles that share a common vertex, a common side and no common interior points.
Six angles.
An angle is formed by two rays with a common endpoint.
Polygon
vertical opposite equal angles
21 - including one of 360 degrees.
Yes. They diverge from a common endpoint in opposite directions.