Definition

Adjective: Forming a right angle (an angle of exactly 90 degrees) or containing one or more right angles.

Usage

The adjective "right-angled" is used to describe a geometric shape, corner, or intersection where two lines or surfaces meet at a 90-degree angle. It is most commonly used in mathematical and technical contexts.

Examples

• The carpenter ensured the frame was right-angled.
• A right-angled triangle has one interior angle of 90 degrees.
• The streets intersected in a right-angled cross.

Advanced Usage

• "right-angled bend": A sharp turn that changes direction by 90 degrees.
  • The pipe makes a right-angled bend under the floor.

Variants and Related Words

• Right angle (n): The angle of 90 degrees itself.
  • The two walls meet at a right angle.
• Right-angled triangle (n): A specific compound term for a triangle with one right angle. (Note: This is a distinct compound noun, not the adjective "right-angled" alone).

Synonyms

• Perpendicular
• Square (when referring to corners)
• Orthogonal (technical/mathematical)

Antonyms

• Acute-angled
• Obtuse-angled

Adjective

1. forming a right angle or containing one or more right angles
   • a right-angled bend