Q:

# What are two rays with the same endpoint called in geometry?

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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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To denote an angle, it is necessary to use three points. While each side has one point, the vertex is the middle point that unites both sides of the rays. For example, an angle named DEG has the points D and G as its sides and E as the vertex point. This angle DEG divides a plane into three distinct parts, which are the angle's interior, exterior and the angle itself.

Different types of angles can be formed by two rays, including acute, obtuse, straight and right angles.

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## Related Questions

• A:

The common endpoint of the sides of an angle is called a vertex. For example, triangles have three vertices, while squares have four. These common endpoints are often colloquially called corner points, though this may result in confusing them with angles.

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Euclid of Alexandria is called the Father of Geometry. He received his education at Plato's Academy in Greece and moved to Egypt to teach. He taught during the reign of Ptolemy I Soter, the first Macedonian ruler. Euclidian geometry has been taught in schools for a long time.

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For each vector, the angle of the vector to the horizontal must be determined. Using this angle, the vectors can be split into their horizontal and vertical components using the trigonometric functions sine and cosine. The horizontal components for the vectors are solved separately from the vertical. The combined horizontal and vertical components are solved using the Pythagorean theorem to reach the final answer.