Trigonometrymedium · Past Paper
In a triangle right-angled at B, AB = 24 cm, BC = 7 cm. Find sin A.
A7/24
B7/25
C24/25
D25/7
✓ Correct Answer: B — 7/25
AC = sqrt(24^2 + 7^2) = 25. sin A = BC/AC = 7/25.
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