Right Angle
A right angle is a type of angle that measures exactly 90 degrees
A right angle is a type of angle that measures exactly 90 degrees. It is formed when two lines or line segments intersect each other, creating four angles at the intersection point. Among these four angles, the right angle is the largest and has a perfect 90-degree measurement.
A right angle is known for its distinct shape, resembling the letter “L”. One side of the angle forms a horizontal line, while the other side forms a vertical line, creating a perpendicular intersection. The symbol for a right angle is usually a small square drawn in the corner of the angle.
Right angles are commonly found in various geometric shapes and objects. For example, the corners of a square or rectangle are right angles. Additionally, the intersection between the floor and a wall, or the intersection between the hands of a clock when it is at 3:00, also forms right angles. In a right triangle, one of the angles is always a right angle.
Properties of a right angle include:
1. Measure: A right angle always measures exactly 90 degrees.
2. Perpendicularity: The two line segments forming the right angle are perpendicular to each other, meaning they intersect at a 90-degree angle.
3. Sum of angles: In any triangle, the sum of the three angles equals 180 degrees. Therefore, if one of the angles in a triangle is a right angle (90 degrees), the other two angles must add up to 90 degrees as well.
Right angles play a significant role in various mathematical concepts and applications, such as geometry, trigonometry, and engineering. They are crucial in determining perpendicularity, constructing shapes, calculating distances, and solving equations.
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