Quadrilateral in a Circle

Geometry Level 1

In quadrilateral A B C D ABCD inscribed in a circle, A B ‾ = 6 , B C ‾ = 3 , A D ‾ = 9 , ∠ B = 12 0 ∘ . \overline{AB}=6, \overline{BC}=3, \overline{AD}=9, \angle B=120^\circ. If C D ‾ > 3 , \overline{CD}>3, what is the area of quadrilateral A B C D ? ABCD?

18 3 18\sqrt{3} 17 3 17\sqrt{3} 16 3 16\sqrt{3} 19 3 19\sqrt{3}

Ajay Dutta by Ajay Dutta , 24, India

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1 solution

Quennie Joy
Mar 5, 2014

6 3 2*9=324

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