Podcast
Questions and Answers
What does SOH stand for in the mnemonic SOH CAH TOA?
What does SOH stand for in the mnemonic SOH CAH TOA?
Sine = Opposite / Hypotenuse
Which trigonometric ratio involves the opposite and adjacent sides of a right triangle?
Which trigonometric ratio involves the opposite and adjacent sides of a right triangle?
- Sine
- Cosine
- Tangent (correct)
Which trigonometric ratio involves the opposite and hypotenuse sides of a right triangle?
Which trigonometric ratio involves the opposite and hypotenuse sides of a right triangle?
- Tangent
- Sine (correct)
- Cosine
Which trigonometric ratio involves the adjacent and hypotenuse sides of a right triangle?
Which trigonometric ratio involves the adjacent and hypotenuse sides of a right triangle?
Flashcards
Trigonometric Ratio
Trigonometric Ratio
A ratio of two sides in a right-angled triangle related to an angle.
SOH CAH TOA
SOH CAH TOA
A mnemonic for remembering the trigonometric ratios in a right-angled triangle.
Hypotenuse
Hypotenuse
The longest side of a right-angled triangle, opposite the right angle.
Opposite Side
Opposite Side
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Adjacent Side
Adjacent Side
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sin θ
sin θ
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cos θ
cos θ
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tan θ
tan θ
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Right triangle
Right triangle
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θ
θ
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Study Notes
Trigonometric Ratios
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Sine (sin θ) = Opposite / Hypotenuse
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Cosine (cos θ) = Adjacent / Hypotenuse
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Tangent (tan θ) = Opposite / Adjacent
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SOH CAH TOA is a helpful mnemonic device to remember these ratios. (Sine = Opposite over Hypotenuse, Cosine = Adjacent over Hypotenuse, Tangent = Opposite over Adjacent)
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