Trigonometry

Aw o the trigonometric functions o an angle θ can be constructit geometrically in terms o a unit circle centred at O.
Trigonometry (frae Greek trigōnon, "triangle" an metron, "meisur"[1]) is a branch o mathematics that studies relationships involvin lenths an angles o triangles.
References[eedit | eedit soorce]
- ↑ "trigonometry". Online Etymology Dictionary.