Diagonal: meaning, definitions and examples
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diagonal
[ daɪˈæɡənəl ]
geometry
Joining two nonadjacent vertices of a polygon or polyhedron.
Synonyms
Examples of usage
- The diagonal of a square divides it into two congruent right triangles.
- The diagonal of a cube connects two opposite vertices.
mathematics
A straight line that connects two opposite corners of a shape, such as a square or rectangle.
Synonyms
crossway, oblique line, transversal
Examples of usage
- The diagonal of a rectangle divides it into two right triangles.
- The diagonal of a cube passes through the center of the cube.
Translations
Translations of the word "diagonal" in other languages:
🇵🇹 diagonal
🇮🇳 तिरछा
🇩🇪 diagonal
🇮🇩 diagonal
🇺🇦 діагональ
🇵🇱 diagonalna
🇯🇵 斜め (ななめ)
🇫🇷 diagonale
🇪🇸 diagonal
🇹🇷 çapraz
🇰🇷 대각선 (daegakseon)
🇸🇦 قطري (qutri)
🇨🇿 diagonální
🇸🇰 diagonálny
🇨🇳 对角线 (duìjiǎoxiàn)
🇸🇮 diagonala
🇮🇸 skálína
🇰🇿 диагональ
🇬🇪 დიაგონალი (diagônali)
🇦🇿 diagonal
🇲🇽 diagonal
Word origin
The word 'diagonal' originated from the Greek word 'diagonios', meaning 'from angle to angle'. The concept of diagonals has been used in geometry for centuries to describe the lines that connect opposite corners of shapes. Diagonals play a crucial role in various mathematical calculations and geometric properties.