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2. A cuboid has its base area 24sq.cm and height 6cm. What is itsvolume?[A) 24cmB) 30cm? C) 72cmD) 144cm |
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Answer» volume of cuboid =l×b×h=448cm 3
=l×b×7=448cm 3
=l×b=64cm
but base is square ∴l=b ∴l 2 =64cm 2
⇒l=b=8cm surface AREA =2(lb+lh+bh) =2(8×8+8×7+8×7) =2(64+56+56) 2 |
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