Straight angle
Measures 180 degrees
A straight angle is an angle that measures exactly 180 degrees. In other words, a straight angle is the largest possible angle that can be formed in Euclidean geometry. It is always a straight line and it has no curvature.
A straight angle is formed by two rays that have a common endpoint and extend in opposite directions and form a straight line. The common endpoint is called the vertex of the angle, and the two rays are called the arms or sides of the angle.
Straight angles are important in mathematics because they are used to measure the full rotation around a point. For example, a circle is composed of 360 degrees, so if you rotate around a point in a full circle, you are completing a straight angle.
In addition, straight angles have some important properties which are used in mathematics and geometry. For instance, if two straight lines intersect at a point, then the opposite angles are always equal. Also, angles on a straight line add up to 180 degrees.
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