angle
A figure formed by two rays with a common endpoint
An angle is a geometric figure that’s formed by two rays sharing a common endpoint, known as a vertex. The angle is measured in units known as degrees and typically denoted using the symbol °. The size of an angle is determined by the amount of rotation between the two rays, which can range from 0° (no rotation) to 360° (a full rotation). There are many different types of angles, including acute angles (less than 90°), right angles (exactly 90°), obtuse angles (greater than 90° but less than180°), and straight angles (exactly 180°). Additionally, angles can be classified based on the relationship between their measures, such as complementary angles (whose total measures add up to 90°) and supplementary angles (whose total measures add up to 180°). Angles are used extensively in geometry, trigonometry, and related fields.
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