Definition

Adjective: * Having angles that are not right angles (90 degrees). An oblique-angled shape contains at least one angle that is either acute (less than 90 degrees) or obtuse (greater than 90 degrees).

Usage

The term "oblique-angled" is a descriptive adjective used primarily in geometry and related fields to classify shapes and figures based on their angles. It specifies that the angles within the shape deviate from perpendicularity.

Examples

• The surveyor marked out an oblique-angled plot of land for the new park.
• In the diagram, triangle ABC is an oblique-angled triangle, as none of its interior angles equal 90 degrees.
• The architect designed a modern building featuring several oblique-angled walls and windows.

Advanced Usage

• Oblique-angled triangle: This is a specific and common application, referring to any triangle that is not a right-angled triangle. It encompasses both acute and obtuse triangles.
  • Solving for the sides of an oblique-angled triangle requires the use of the Law of Sines or the Law of Cosines.

Variants and Related Words

• Oblique (adjective): 1. Neither parallel nor at a right angle to a specified or implied line; slanting. 2. Not expressed or done in a direct way.
  • The sun cast oblique shadows across the courtyard.
  • She made an oblique reference to the financial problems.
• Acute-angled (adjective): Having all interior angles acute (less than 90 degrees).
• Obtuse-angled (adjective): Having one interior angle that is obtuse (greater than 90 degrees).

Synonyms

• Non-right-angled
• Slanting (when referring to lines or planes, not specifically internal angles)
• Inclined (when referring to lines or planes, not specifically internal angles)

Antonyms

• Right-angled
• Perpendicular
• Orthogonal

Adjective

1. having oblique angles