In triangle ABC,with usual notation,observe t | vedclass

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(A) In a triangle $	riangle ABC$,the following standard identities hold true:$1$. The product of the inradius $r$ and the exradii $r_1, r_2, r_3$ is

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Both $I$ and $II$ are true

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(A) In a triangle $	riangle ABC$,the following standard identities hold true:$1$. The product of the inradius $r$ and the exradii $r_1, r_2, r_3$ is given by $r r_1 r_2 r_3 = \Delta^2$,where $\Delta$ is the area of the triangle.$2$. The sum of the products of the exradii taken two at a time is given by $r_1 r_2 + r_2 r_3 + r_3 r_1 = s^2$,where $s$ is the semi-perimeter of the triangle.Since both identities are standard results in the properties of triangles,both statements $(I)$ and $(II)$ are true.

In $\triangle ABC$,with usual notation,observe the two statements given below :
$(I)$ $r r_1 r_2 r_3 = \Delta^2$
$(II)$ $r_1 r_2 + r_2 r_3 + r_3 r_1 = s^2$
Which of the following is correct?

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In $\triangle ABC$,with usual notation,observe the two statements given below :$(I)$ $r r_1 r_2 r_3 = \Delta^2$$(II)$ $r_1 r_2 + r_2 r_3 + r_3 r_1 = s^2$Which of the following is correct?