+A [Right Angle](/wiki/Right_Angle) marks a precise turn of 90 degrees, often found where [Perpendicular Lines](/wiki/Perpendicular_Lines) meet. This fundamental shape is a cornerstone of construction, defining the perfect corner and serving as a basis in [Geometry](/wiki/Geometry).
+## See also
+- [Angle](/wiki/Angle)
+- [Line](/wiki/Line)
+- [Square](/wiki/Square)
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