Question

9. How many cubes of edge 0.5 cm are required to make a cube of side 3 cm?
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Answer 1

Answer:

volume of cube with side 3 cm = 3^3 = 27 cm^3

volume of cube with side 0.5 cm = 0.5^3 = 0.125 cm^3

no. of cubes = 27/0.125 = 21.6 cubes

Step-by-step explanation:

Answer 2

$\huge{\mathcal{\blue{\underline{Answer}}}}$

Volume of the cube of side 3cm :

$= (side) {}^{3} \\ = (3cm ){}^{3} \\ = 27cm {}^{3}$

Now the volume of the cube of side 0.5cm :

$= (side) {}^{3} \\ = (0.5cm) {}^{3} \\ = 0.125cm {}^{3}$

Number of cubes that are required to make a cube of side 3cm :

= Volume of cube of side 3cm/volume of cube of side 0.5cm

$= \frac{27cm {}^{3} }{0.125cm {}^{3} }$

$\huge{\mathcal{\blue{\implies{\underline{216\:cubes}}}}}$