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In the equilateral triangle ABC, AD = DE...

In the equilateral triangle ABC, AD = DE = BE, D and E lies on the AB. If each side of the triangle (i.e., AB, BC and AC) be 6 cm, then the area of the shaded region is:

A

`9 cm ^@`

B

`root(6)(3 cm ^2)`

C

`root(5)(3 cm ^2)`

D

none of the above

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The correct Answer is:
B
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