Let $a,b,c$ be the length of sides of triangle such that $a+b=17, a+c=25$ and $b+c=18$ and $'\ell'$ be the distance between circumcentre & orthocentre then $(8\ell-2)$ is
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Let $a,b,c$ be the length of sides of triangle such that $a+b=17, a+c=25$ and $b+c=18$ and $'\ell'$ be the distance between circumcentre & orthocentre then $(8\ell-2)$ is