# Trigonometry

Here is a list of all of the skills that cover trigonometry! These skills are organised by year, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

Here is a list of all of the skills that cover trigonometry! To start practising, just click on any link.

## Secondary 3 skills

- G.24 Pythagoras' theorem
- G.25 Pythagoras' theorem: word problems
- G.26 Converse of Pythagoras' theorem: is it a right triangle?
- H.1 Trigonometric ratios: sin, cos and tan
- H.2 Trigonometric ratios: csc, sec and cot
- H.3 Find trigonometric functions of special angles
- H.4 Find trigonometric functions using a calculator
- H.5 Inverses of trigonometric functions
- H.6 Trigonometric ratios: find a side length
- H.7 Trigonometric ratios: find an angle measure
- H.8 Solve a right triangle

## Secondary 4 skills

- Z.1 Pythagoras' Theorem
- Z.2 Converse of Pythagoras' theorem
- Z.3 Pythagoras' Inequality Theorems
- Z.4 Special right triangles
- AA.1 Convert between radians and degrees
- AA.2 Radians and arc length
- AA.3 Quadrants
- AA.4 Graphs of angles
- AA.5 Coterminal angles
- AA.6 Reference angles
- BB.1 Trigonometric ratios: sin, cos and tan
- BB.2 Trigonometric ratios: csc, sec and cot
- BB.3 Trigonometric ratios in similar right triangles
- BB.4 Find trigonometric ratios using the unit circle
- BB.5 Sin, cos and tan of special angles
- BB.6 Csc, sec and cot of special angles
- BB.7 Find trigonometric functions using a calculator
- BB.8 Inverses of sin, cos and tan
- BB.9 Inverses of csc, sec and cot
- BB.10 Trigonometric ratios: find a side length
- BB.11 Trigonometric ratios: find an angle measure
- BB.12 Solve a right triangle
- BB.13 Law of Sines
- BB.14 Law of Cosines
- BB.15 Solve a triangle

## Higher 1 skills

- U.1 Convert between radians and degrees
- U.2 Radians and arc length
- U.3 Quadrants
- U.4 Graphs of angles
- U.5 Coterminal angles
- U.6 Reference angles
- V.1 Pythagoras' Theorem and its converse
- V.2 Special right triangles
- V.3 Trigonometric ratios: sin, cos and tan
- V.4 Trigonometric ratios: csc, sec and cot
- V.5 Trigonometric ratios in similar right triangles
- V.6 Find trigonometric ratios using the unit circle
- V.7 Sin, cos and tan of special angles
- V.8 Csc, sec and cot of special angles
- V.9 Find trigonometric functions using a calculator
- V.10 Inverses of sin, cos and tan
- V.11 Inverses of csc, sec and cot
- V.12 Solve trigonometric equations I
- V.13 Solve trigonometric equations II
- V.14 Trigonometric ratios: find a side length
- V.15 Trigonometric ratios: find an angle measure
- V.16 Solve a right triangle
- V.17 Law of Sines
- V.18 Law of Cosines
- V.19 Solve a triangle
- W.1 Find properties of sine functions
- W.2 Write equations of sine functions from graphs
- W.3 Write equations of sine functions using properties
- W.4 Graph sine functions
- W.5 Find properties of cosine functions
- W.6 Write equations of cosine functions from graphs
- W.7 Write equations of cosine functions using properties
- W.8 Graph cosine functions
- W.9 Graph sine and cosine functions
- X.1 Complementary angle identities
- X.2 Symmetry and periodicity of trigonometric functions
- X.3 Trigonometric identities I
- X.4 Trigonometric identities II