- In geometry, a hypotenuse is the side of a right triangle opposite the right angle. It is the longest side of any such triangle; the two other shorter sides of such a triangle are called catheti or legs. The length of the hypotenuse can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the two legs. Mathematically, this can be written as š2 + š2 = š^2, where a is the length of one leg, b is the length of another leg, and c is the length of the hypotenuse.
- Gamma Persei (Wikipedia)
Gamma Persei (Gamma Per, Ī³ Persei, Ī³ Per) is a binary star system in the constellation Perseus. The combined apparent visual magnitude of the pair is +2.9, making it the fourth-brightest member of the constellation. The distance to this system is of roughly 221 light-years (68 parsecs) with a 1% margin of error. About 4Ā° to the north of Gamma Persei is the radiance point for the annual Perseid meteor shower.