For students between the ages of 11 and 14. Introduction to trigonometry for right-angled triangles Learn about three trigonometric ratios in similar right-angled triangles with this BBC Bitesize ...

It may be necessary to use Pythagoras' theorem and trigonometry to solve a problem. The shape ABCDEFGH is a cuboid. Length AB is 6 cm, length BG is 3 cm and length FG ...