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The trigonometry problems found on a number sense test mostly use basic trigonometry concepts that are not tricks or methods.  This section will only include the shortcuts to trig problems.  It is NOT a lesson in trigonometry.  The methods that are here are only for people that have a background in trigonometry.  Because of this, all questions are considered advanced level.

Basic memorizations  (*PDF*)

Convert radians to degrees to radians  (*PDF*)

Pythagorean triples  (*PDF*)

Definitions (amplitude, horizontal/vertical displacement, and wavelength)  (*PDF*)

Inscribed circles of a right triangle  (*PDF*)

Circumscribed circles of a right triangle  (*PDF*)