# Trigonometry and Pythagoras

Categories: gcse trigonometry

This section covers the trigonometry topic in GCSE Mathematics. It covers:

Many of these topics are also covered by videos on the Youtube channel GraphicMaths.

## See also

## Join the GraphicMaths Newletter

Sign up using this form to receive an email when new content is added:

## Popular tags

angle area cartesian equation chord circle combinations complex polygon cosh cosine cosine rule cube decagon diagonal directrix dodecagon ellipse equilateral triangle exponential exterior angle focus hendecagon heptagon hexagon horizontal hyperbola hyperbolic function interior angle inverse hyperbolic function irregular polygon isosceles trapezium isosceles triangle kite locus major axis minor axis nonagon normal octagon parabola parallelogram parametric equation pentagon perimeter permutations power quadrilateral radius rectangle regular polygon rhombus root sine rule sinh sloping lines solving equations solving triangles square standard curves star polygon straight line graphs tangent tanh transformations trapezium triangle vertical