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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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In a △ABC\triangle A B C, the inradius and three exradii are r,r1,r2r, r_1, r_2 and r3r_3, respectively. In usual notations, the value of r⋅r1⋅r2⋅r3r \cdot r_1 \cdot r_2 \cdot r_3 is equal to
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Correct option: B
Δ2\Delta^2
Option B (Δ2\Delta^2) is correct because the product of the inradius and exradii is equal to the square of the area of the triangle.

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