oblique triangle

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Explanation of "Oblique Triangle"

Definition:
An oblique triangle is a type of triangle that does not have a right angle (which is an angle of 90 degrees). Instead, all three angles in an oblique triangle are either acute (less than 90 degrees) or obtuse (more than 90 degrees).

Usage Instructions:

• You can use "oblique triangle" when discussing geometry, especially in contexts involving different types of triangles.
• It’s important to remember that an oblique triangle can be either acute or obtuse, but it will never have a right angle.

Examples:

1. "In my math class, we learned that an oblique triangle can be classified as either acute or obtuse."
2. "To calculate the area of an oblique triangle, you can use the formula: Area = 1/2 height."

Advanced Usage:

• In higher mathematics, oblique triangles are often discussed in the context of the Law of Sines and the Law of Cosines, which help find unknown sides and angles in such triangles.

Word Variants:

• Obliqueness (noun): The quality of being oblique; in geometry, it refers to the property of angles not being right angles.
• Oblique (adjective): Describes angles or lines that are not perpendicular or parallel.

Different Meanings:

• Oblique can also refer to something that is not straightforward or direct. For example, an "oblique reference" means a subtle or indirect mention of something.

Synonyms:

• Slanting triangle
• Non-right triangle

Related Idioms and Phrasal Verbs:

• While "oblique triangle" does not have specific idioms or phrasal verbs associated with it, the term "oblique" in general can be used in phrases like:
  • "Take an oblique approach" – meaning to tackle a problem in a roundabout or indirect way.

Conclusion:

Understanding the concept of an oblique triangle is useful in geometry, and recognizing its characteristics will help you solve problems related to triangles.

Academic

Noun

1. a triangle that contains no right angle