góc đối đỉnh

Hai góc đối đỉnh được tạo thành bởi hai đường thẳng cắt nhau.

Definition

1. Noun:
   • Vertical angles: A pair of angles formed by two intersecting lines. These angles are opposite each other and are always equal in measure.

Usage Examples

• Noun:
  • Hai đường thẳng cắt nhau tạo thành hai cặp góc đối đỉnh. (Two intersecting lines form two pairs of vertical angles.)
  • Trong hình học, góc đối đỉnh thì bằng nhau. (In geometry, vertical angles are equal.)

Advanced Usage

• This term is used almost exclusively in the field of Euclidean geometry. The property that vertical angles are congruent is a fundamental theorem.

Variants and Related Words

• Góc (n): angle.
• Đối đỉnh (adj): opposite, vertical (in the geometric sense of being opposite the vertex).

Synonyms

• Vertical angles: The direct and only English equivalent in a geometric context.
• Opposite angles: A less common but sometimes used synonym.

Related Concepts

• Intersecting lines: Two lines that cross at a point, forming the vertex for the angles.
• Congruent angles: Angles that have the same measure.