The six trigonometric ratios

• Trigonometry


  The branch of mathematics that deals with the relation between the sides and angles of a triangle
• Right triangle trigonometry


  Used to find the length of one side or the measure of an acute angle of a right triangle
• Right triangle


  • Hypotenuse is the side opposite the right angle and the longest side
  • Opposite side is the side opposite an angle
  • Adjacent side is the side which is also a side of the angle
• Six trigonometric ratios

  • Sine
  • Cosine
  • Tangent
  • Cosecant
  • Secant
  • Cotangent