Isosceles triangle the hypotenuse to the right-angled vertex) divides the right triangle into two isosceles triangles. This is because the midpoint of the hypotenuse is the center of the circumcircle of the right triangle, and each of the two triangles created by the partition has two equal radii as two of its sides. Similarly, an acute triangle can be partitioned into three isosceles triangles by segments from its circumcenter, but this method does not work for obtuse triangles, because the circumcenter lies outside the triangle. Generalizing the partition of an acute triangle, any cyclic polygon that contains the center of its circumscribed
Parisa (given name) Parisa (given name) Parisā () (pronounced pə-REE-sa) is a Persian given name for girls that means 'like a fairy'. The ancient Persian name "Parysatis" () is related to this name. Two notable women with the name "Parysatis" are: Parysatis, who was the wife of Darius II (), ("Dārayavahuš"), king of the Persian Empire and Parysatis II, the youngest daughter of Artaxerxes III of Persia, who was the wife of Alexander the Great. "Pari" can be used as a diminutive of Parisa. Pari () (pronounced pər-REE) means "fairy" and is used as a name of its own right as well. Pari