Q26 of 52 Page 344

The surface areas of the six faces of a rectangular solid are 16, 16, 32, 32, 72 and 72 square centimeter is

Since the solid has rectangular faces.


So , we have lb = 16 ……(i)


bh = 32 …………(ii)


lh = 72 …………….(iii)


on multipiying eqns.i,ii and iii,we get


l × b × b × h × l × h = 16 × 32 × 72


l2 × b × h2 = 36864


L × b × h = 192


Hence ,the volume is 192cu cm.

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