Detailed Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: The Euler line passes through several distinctive points of one of these objects, while Ceva's theorem also applies to these objects. The area of one of these objects can be found by taking the square root of the (*) semi-perimeter times the difference of the semi-perimeter minus each side. That calculation is known as Heron's formula. A nine point circle can be drawn around one of the objects while the laws of sines and cosines also apply to these objects. For 10 points, name this polygon whose "right" variety conforms to the Pythagorean Theorem.
A:
Science