góc phụ
Definition
- Noun:
- Complementary angle: One of two angles whose sum is exactly 90 degrees (a right angle). When combined, two complementary angles form a right angle.
Usage Examples
- Noun:
- Góc 30° và góc 60° là hai góc phụ. (A 30° angle and a 60° angle are complementary angles.)
- Trong một tam giác vuông, hai góc nhọn luôn là góc phụ của nhau. (In a right triangle, the two acute angles are always complementary to each other.)
- Hãy tìm góc phụ của góc 25°. (Find the complementary angle of a 25° angle.)
Advanced Usage
- "cặp góc phụ nhau": a pair of complementary angles.
- Hình vẽ cho thấy một cặp góc phụ nhau. (The diagram shows a pair of complementary angles.)
Variants and Related Words
- Góc bù (n): supplementary angle (two angles whose sum is 180°).
- Góc vuông (n): right angle (a 90° angle).
Synonyms
- Complementary angle: The direct and only mathematical synonym.
Related Concepts
- Right angle: The 90° angle formed by the sum of two complementary angles.
- Acute angle: An angle less than 90°; both angles in a complementary pair must be acute.