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12 questions from this quiz
Using trig ratios to find unknown sides/angles
Two pieces (one side & one angle, or 2 sides)
sinθ=oppositehypotenuse\sin \theta = \frac{\text{opposite}}{\text{hypotenuse}}sinθ=hypotenuseopposite
cosθ=adjacenthypotenuse\cos \theta = \frac{\text{adjacent}}{\text{hypotenuse}}cosθ=hypotenuseadjacent
tanθ=oppositeadjacent\tan \theta = \frac{\text{opposite}}{\text{adjacent}}tanθ=adjacentopposite
Tangent = Opposite ÷ Adjacent
The longest side, opposite the right angle
tan−1\tan^{-1}tan−1
When you know two sides and want to find angle
Degree mode
4 decimal places
x=8cos32°x = \frac{8}{\cos 32°}x=cos32°8
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