reentering angle

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The term "reentering angle" is used in geometry, particularly when talking about shapes called polygons. Let's break it down for easier understanding:

Definition:

• Reentering Angle (noun): This is an angle that is formed inside a polygon (a shape with straight sides) and is greater than 180 degrees.

Usage Instructions:

• You would use "reentering angle" when discussing the properties of certain polygons, especially those that have indentations or "dents" in their shape, which create angles that turn back into the shape itself.

Example:

• In a star shape, the point where the lines come together and create an angle that curves back inward is a reentering angle.

Advanced Usage:

• In more complex discussions, you might find "reentering angles" mentioned when studying polygon classifications or in topics like architecture, where understanding the geometry of a structure is important.

Word Variants:

• Reenter (verb): To enter again.
• Reentrant (adjective): Describing something that goes back in, often used interchangeably with "reentering."

Different Meaning:

• While "reentering angle" has a specific geometry meaning, "reentering" in a different context can simply mean going back into a place or situation (like reentering a building).

Synonyms:

• Reflex Angle: This is often used to describe angles greater than 180 degrees, but it can refer to any angle that turns back on itself, not just those in polygons.

Idioms and Phrasal Verbs:

• There are no common idioms or phrasal verbs specifically related to "reentering angle" in everyday English. However, the idea of "reentering" can be connected to phrases like "go back" or "return," which imply revisiting a place or situation.

Summary:

In summary, a "reentering angle" is a specific type of angle found in polygons that is greater than 180 degrees, often seen in shapes that have indentations.

Academic

Noun

1. an interior angle of a polygon that is greater than 180 degrees

Synonyms

• reentrant angle