Trigonometry (Maths- Higher)


The three formulae: sin, cos, tan

Hypotenuse- is the longest side and is always opposite to the right angle.

Opposite & adjacent- sides relate to the angle under considerate

The are three formulae involved in trigonometry:

sin= opposite / hypotenuse

cos= adjacent / hypotenuse

tan= opposite / adjacent

1 of 2

Which formula to use?

There are a couple of ways to help you remember which formulae to use.

  • remember SOHCAHTOA (pronouce sock-ka-toa)


  • Some Old Hag Cracked All Her Teeth On Apples
2 of 2


No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »See all Trigonometry resources »