**catheti** — n. line or radius falling perpendicularly on another; side of a right angled triangle that makes a right angle with another one (Geometry) … English contemporary dictionary

**Cathetus** — This page is about the geometric meaning. For the plant, see Phyllanthus . For the epiplemiine moth, see Monobolodes.In a right triangle, the cathetus (originally from the Greek word el. Κάθετος, plural el. Κάθετοι; its plural in English is… … Wikipedia

**Cathetus** — Cath e*tus, n.; pl. {catheti}. [L., fr. Gr. ? a perpendicular line, fr. ? let down, fr. ?. See {Catheter}.] (Geom.) One line or radius falling perpendicularly on another; as, the catheti of a right angled triangle, that is, the two sides that… … The Collaborative International Dictionary of English

**Pinhole camera model** — The pinhole camera model describes the mathematical relationship between the coordinates of a 3D point and its projection onto the image plane of an ideal pinhole camera, where the camera aperture is described as a point and no lenses are used to … Wikipedia

**Triangle** — This article is about the basic geometric shape. For other uses, see Triangle (disambiguation). Isosceles and Acute Triangle redirect here. For the trapezoid, see Isosceles trapezoid. For The Welcome to Paradox episode, see List of Welcome to… … Wikipedia

**Square root of 5** — The square root of 5 is the positive real number that, when multiplied by itself, gives the prime number 5. This number appears in the formula for the golden ratio. It can be denoted in surd form as::sqrt{5}.It is an irrational algebraic number.… … Wikipedia

**cathetus** — /kath i teuhs, keuh thee teuhs/, n., pl. catheti / tuy , tuy/. (in an Ionic capital) the vertical guideline through the eye of a volute, from which the form of the volute is determined. [1565 75; < L (n.) < Gk káthetos perpendicular, equiv. to… … Universalium

**cathetus** — /kath i teuhs, keuh thee teuhs/, n., pl. catheti / tuy , tuy/. (in an Ionic capital) the vertical guideline through the eye of a volute, from which the form of the volute is determined. [1565 75; < L (n.) < Gk káthetos perpendicular, equiv … Useful english dictionary