In △ABC, the incircle touches the sides BC, CA and AB, respectively, – InterviewSolution

1.	In △ABC, the incircle touches the sides BC, CA and AB, respectively, D, E, and F. If the radius of the incircle is 4 units and BD, CE and AF are consecutive integers, then the value of s3, where s is a semi-perimeter of triangle, is
Answer» In $△ A B C$ , the incircle touches the sides $B C, C A$ and $A B$ , respectively, $D, E,$ and $F$ . If the radius of the incircle is $4$ units and $B D, C E$ and $A F$ are consecutive integers, then the value of $\frac{s}{3}$ , where $s$ is a semi-perimeter of triangle, is

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