If the sum of two acute angles is a right angle, then these two angles are called complementary angles. It can also be said that one angle is the complement of another angle. If the sum of two angles is a right angle, then the two angles are complementary angles, and one angle is called the complementary angle of the other angle.
The nature of complementary angle: the complementary angle of the same angle is equal. For example: ∠ A+∠C =∠B = 90, ∠ A+∠A+∠C = 90°, then: ∠ C = ∠ B. The complementary angles of equal angles are equal. For example, ∠ A+∠C=∠B = 90, ∠ D+∠ C = 90, ∠ A = ∠ D = ∠ B.
The nature of complementary angle: the complementary angle of the same angle is equal. For example: ∠ A+∠C=∠B = 180, ∠ A+∠ C = 180, then: ∠C=∠B. The complementary angles of equal angles are equal. For example: ∠ A+∠C=∠B = 180, ∠ D+∠ C = 180, ∠ A = ∠ D: ∠ C = ∠.
Angle explanation:
Angle is a geometric noun, and the definition of angle is that a figure composed of two rays with a common endpoint is called angle. This common endpoint is called the vertex of the angle, and these two rays are called the two sides of the angle. The general angle is assumed to be in Euclidean plane, but it can also be defined in non-Euclidean geometry.
Angle is widely used in geometry and trigonometry. Angles can be divided into acute angle, right angle, obtuse angle, right angle, rounded corner, negative angle, positive angle, upper angle, lower angle and 0 angle, which are 10 respectively. An angle measuring system with degrees, minutes and seconds as the unit is called an angle system, and the symbol of the angle is mathematically represented by ∠.