complementary angles câu

• 8: Supplementary angle: | Two angles are complementary if they add up to 180 Degrees. | Complementary angles: | Two angle are complementary if they add up to be 90 degrees.
  Tiếng Việt: Góc phụ nhau (Tổng số đo 2 góc bằng 90 độ) English: Two Angles are Complementary when they add up to 90 degrees (a Right Angle).