Understanding Trigonometry Ratios

Front

Sine ratio definition

Back

latex="\sin \theta = \frac{\text{opposite}}{\text{hypotenuse}}">

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Cosine ratio definition

Back

latex="\cos \theta = \frac{\text{adjacent}}{\text{hypotenuse}}">

Front

Tangent ratio definition

Back

latex="\tan \theta = \frac{\text{opposite}}{\text{adjacent}}">

Front

Back

latex="\sin 30^\circ = \frac{1}{2}">

Front

Back

latex="\sin 90^\circ = 1">

Front

Back

latex="\cos 60^\circ = \frac{1}{2}">

Front

Back

latex="\cos 0^\circ = 1">

Front

Back

latex="\tan 45^\circ = 1">

Front

Back

latex="\tan 0^\circ = 0">

Front

Tangent as sine over cosine

Back

latex="\tan \theta = \frac{\sin \theta}{\cos \theta}">