Same chapter1 markDifficulty: Easy
In a right-angled triangle, sin θ is:
Trigonometrical Ratios
2 marksDifficulty: Easy
Define the six trigonometric ratios of an acute angle of a right-angled triangle.
Original Khojo Papers practice question — not from a past board paper.
Answer
For an acute angle θ, sine is the opposite side over the hypotenuse, cosine the adjacent side over the hypotenuse and tangent the opposite over the adjacent. Cosecant, secant and cotangent are the reciprocals of sine, cosine and tangent respectively.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The ratios depend only on the angle and not on the size of the triangle.
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