how many cubes of side 3cm can be cut from a solid cuboid whose length, breadth and height are 21cm,18cm,and 10cm respectively
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Answer:
Step-by-step explanation:
Given, length=21 cm, breadth=9cm, height=8cm for wooden block.
Volume of wooden block =l*b*h =21*9*8
=1512 cm^3
Volume of cubes of side 3 cm = side*side*side
=3*3*3= 27 cm^3
No. of cubes that can be formed(n) =volume of wooden cubiod/volume of cubes =1512/27= 56 cubes
Volume of wood wasted =volume of wooden cuboid - (n*volume of cube)
Which is 1512-(56*27)=0
Thus,0 cm^3 of wood is wasted
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140 is the right ans. .....
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