1.

The angles A, B and C of a triangle ABC are in A.P. and a : b =\(\;1\;:\sqrt 3 \). If c = 4 cm, then the area (in sq.cm) of this triangle is:

A. \(\frac{2}{{\sqrt 3 }}\)
B. \(4\sqrt 3 \)
C. \(2\sqrt 3 \)
D. \(\frac{4}{{\sqrt 3 }}\)
Answer» D. \(\frac{4}{{\sqrt 3 }}\)


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