NDA Math Polygons and Quadrilaterals

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Question : 4 of 12
 
Marks: +1, -0
Let a,b,c be the lengths of sides BC, CA,AB respectively of a triangle ABC. If p is the perimeter and q is the area of the triangle, then what is p(p−2a)‌tan(‌
A
2
)
equal to ?
[NDA-I 2022]
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