Y10 trigonometry Cheat Sheet

A cheat sheet in English by deathrobotpunch

5,525 views 332 downloads 26 Aug 2025 History

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Trigonometric Functions

pythagoras's theorem

Sine and cosine rule

Sine rule finding side example

Sine rule Finding Angles example

Subtract angles of depression by 90 degrees

Similarity Test for Similar Triangles

Scale Factor

Scale Factor
Scale factor is the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

sf = larger figure dimensions ÷ smaller figure dimensions

true bearings

angle of elevation example

angle of depression example

Examples of Trigonometric functions

Examples of inverse functions

to solve A: sin-1 (a / c) or cos-1 (adjacent/hypotenuse) or tan-1 (a/b)
to solve B: sin-1 (b/c) cos-1 (a/c) tan-1 (b/a)

conventional bearings

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Comments (1)

deathrobotpunch 07:49 26 Aug 2025

This is a collection of materials I found both on this site and online, I take no ownership of any of the materials provided as this was made only for my personal use in mind.