Read the following description of angles?

An angle is formed when two rays share a common endpoint, called the vertex. Angles are typically measured in degrees, with a full circle measuring 360 degrees. Angles can be classified based on their measure: acute angles are less than 90 degrees, right angles are exactly 90 degrees, obtuse angles are between 90 and 180 degrees, and straight angles are exactly 180 degrees. Angles can also be classified based on their relationship to each other, such as complementary angles (two angles that add up to 90 degrees) or supplementary angles (two angles that add up to 180 degrees).

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