Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 3 - No. 30)
Which trigonometric function is defined as the ratio of the opposite side to the hypotenuse in a right-angled triangle?
Sine
Cosine
Tangent
Cotangent
Explanation
SOH CAH TOA: Sine = Opposite / Hypotenuse.
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