1.

Radha makes a cuboid of plasticine of sides 3cm×3cm×4cm. How many such cuboids will she need to form a cube?

Answer»

Step-by-step explanation:

The least integer side of cube is the L.C.M. of sides of small CUBOID 3,3,4 i.e. =12 which is completely DIVISIBLE by each of three sides of small cuboid hence the NUMBER of cuboids 3cm×3cm×4cm

=VOLUME of cube of side 12 cmvolume of cuboid of sides 3cm×3cm×4cm

=12^3/3×3×4

=48



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