👉 In geometry, a "semi-rotunda" is an ellipse with a major axis of length 2 and minor axis of length 1. It's often used in geometric designs to represent angles or as a symbol for a circular area. This shape can be represented in various ways, such as: 1. In a semicircle: A semi-rotunda with a radius of 1. 2. As an ellipse within another ellipse: An ellipse with a major axis of length 2