Geometrymedium · Past Paper
In triangle ABC, angle A = 30, B = 60. What is the ratio of sides a:b:c?
A1:2:3
B1:sqrt(3):2
C1:1:sqrt(2)
Dsqrt(3):1:2
✓ Correct Answer: B — 1:sqrt(3):2
Angles are 30, 60, 90. sin 30 : sin 60 : sin 90 = 1/2 : sqrt(3)/2 : 1 = 1 : sqrt(3) : 2.
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