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Question

If  P is a point which moves inside an equilateral triangle of side length ‘a’ such that it is nearer to any angular bisector of  the triangle than to any of its sides, then the area of the region in which P lies is __________ sq units
 
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  2.  
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Solution

The correct option is A  
Shaded area is the region traced by P, its  area = ABC3ABD

=34a232a×a2tan15
=32a2(313+1)
 

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