Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 4 - No. 2)
If a triangle's area is known along with the lengths of two sides, what trigonometric function can be used to find the angle between those two sides?
Sine
Cosine
Tangent
Cosecant
Explanation
The area of a triangle formula (1/2 * a * b * sinC) utilizes the sine function.
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