The sum of length, breadth and depth of a cuboid is `19 c m`
and the length of its diagonal is `11 cm.`
Find the surface area of the cuboid.

Explanation

Let length be `l`

Let breath be `b`

Let height be `h`

`l+b+h=19`

Length of diagonal`=sqrt(l^2+b^2+h^2`

`11=sqrt(l^2+b^2+h^2`

`11^2=l^2+b^2+h^2`

`11^2=19^2-2(lb+lh+hl)`

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