ABCDEF is a regular hexagon of side 12 cm. What is the area (in cm2) of the triangle ECD?
A. 18√3
B. 24√3
C. 36√3
D. 42√3
Answer: Option C
Solution (By Examveda Team)
$$\eqalign{ & {\text{ar }}\Delta EDC = \frac{1}{2} \times ED \times DC \times \sin \angle EDC \cr & = \frac{1}{2} \times 12 \times 12 \times \sin {120^ \circ } \cr & = 36\sqrt 3 {\text{ c}}{{\text{m}}^2} \cr} $$
This Question Belongs to Arithmetic Ability >> Mensuration 2D
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