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The sum of length ,breath,and depth of a cuboid is 19cm,and the length of the diagonalis 11cm.Then find the surface area of cuboid .



Vaani, to do this question, first u should know the formula of diagonal in a cuboid which is = square root of ( square of length + square of breadth + square of height)

Then equate it with 11 cm.

I could solve it to u but sorry it did not have mathemetical keyboard.

Hope it helps u
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