Q8 of 14 Page 309

How many cubes of edge 4cm, each can be cut out from cuboid whose length, breadth and height are 20 cm, 18 cm and 16 cm respectively.

Measurement of cuboid

Length = 20 cm Breadth = 18 cm and Height = 16 cm


Volume of cuboid = Length × Breadth × Height


= 20 × 18 × 16


= 5760 cm3


Measurement of cube


Side = 4 cm


Volume of cube = (side)3


= (4) 3


= 4 × 4 × 4


= 64 cm3


Number of cube which can be cut from the cuboid =


=


=


= 90


90 cubes can be cut out from the cuboid.


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