90º
In mathematics, a 90º angle refers to a right angle
In mathematics, a 90º angle refers to a right angle. It is the angle formed when two lines or line segments meet at a perpendicular orientation, meaning they intersect at a 90-degree angle. In a right angle, the two lines or line segments are perpendicular to each other, and each side of the angle measures 90 degrees.
A right angle can be seen in numerous geometric shapes, such as rectangles, squares, and cubes. For instance, in a rectangle, all four interior angles are right angles, each measuring 90 degrees. Similarly, in a square, all four interior angles are also right angles, each measuring 90 degrees.
The concept of a right angle is fundamental in geometry and has numerous real-life applications. It is employed in architectural and engineering designs, where right angles are crucial for maintaining structural stability and balance. Right angles are also used in navigation, particularly in determining directions using compasses or maps. They are represented by a small square symbol (∟) in diagrams and drawings.
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