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# What are opposite rays?

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Two rays are opposite rays in geometry if they have a common initial point and form a straight line. Essentially, these rays point in opposite directions. The common initial point is also called the end point of a ray.

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The opposite arms of a straight, 180-degree angle are an example of opposite rays.

A ray is a set of infinite points. It has length but no width. It stretches indefinitely in one direction only. Two opposite rays stretch indefinitely in both directions. All points on these two rays are collinear points.

A ray is a subset of a line. It always lies in a plane. Two opposite rays are subsets of the line that they form.

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## Related Questions

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An 180 degree angle formed by two opposite rays is called a straight angle. A ray is a straight line that moves indefinitely in one direction away from a given point. The rays move in opposite directions away from the vortex or meeting point where the angle is formed.

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• A:

Two rays that meet at a common endpoint are called an angle in geometry. In an angle, the rays are its sides and the endpoint is the vertex.

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The foci of a hyperbola are points located inside the curve of each branch of the hyperbola that are equidistant from the center point on the transverse axis. For any point on a hyperbola, the difference between its distance from one focus and its distance from the other focus is always a fixed amount.

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Geodetic surveying is a specific type of surveying that takes the curvature of the Earth into account. These surveys cover large areas of land and provide high levels of accuracy.