how many 4 cm long cubes can be cut from a cube whose edges are 20 cm in length?
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Volume of big cube = volume of small cub × n ( n is number of cubes)
a^3 = a^3 × n
(20)^3 = (4)^3 ×n
8000/64 = n
n = 125 cubes
a^3 = a^3 × n
(20)^3 = (4)^3 ×n
8000/64 = n
n = 125 cubes
SakshaM725:
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Answered by
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hii!!!!
here's ur answer frnd....
volume of cube(side=20cm)=side³
=20×20×20
=8000cm³
volume of cube(side=4cm)=side³
=4×4×4
=64cm³
no. of small cubes that can be cut from the big cube=8000/64
=125
hence, 125cubes can be cut from the large cube.
hope this helps frnd....
☺☺☺
here's ur answer frnd....
volume of cube(side=20cm)=side³
=20×20×20
=8000cm³
volume of cube(side=4cm)=side³
=4×4×4
=64cm³
no. of small cubes that can be cut from the big cube=8000/64
=125
hence, 125cubes can be cut from the large cube.
hope this helps frnd....
☺☺☺
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