Find the volume of a cube whose side is

Question:

Find the volume of a cube whose side is

(i) 4 cm

(ii) 8 cm

(iii) 1.5 dm

(iv) 1.2 m

(v) 25 mm

Solution:

(i) The side of the given cube is $4 \mathrm{~cm}$.

$\therefore$ Volume of the cube $=(\text { side })^{3}=(4)^{3}=64 \mathrm{~cm}^{3}$

(ii) The side of the given cube is $8 \mathrm{~cm}$.

$\therefore$ Volume of the cube $=(\text { side })^{3}=(8)^{3}=512 \mathrm{~cm}^{3}$

(iii) The side of the given cube $=1.5 \mathrm{dm}=1.5 \times 10 \mathrm{~cm}=15 \mathrm{~cm}$

$\therefore$ Volume of the cube $=(\text { side })^{3}=(15)^{3}=3375 \mathrm{~cm}^{3}$

(iv) The side of the given cube $=1.2 \mathrm{~m}=1.2 \times 100 \mathrm{~cm}=120 \mathrm{~cm}$

$\therefore$ Volume of the cube $=(\text { side })^{3}=(120)^{3}=1728000 \mathrm{~cm}^{3}$

(v) The side of the given cube $=25 \mathrm{~mm}=\frac{25}{10} \mathrm{~cm}=2.5 \mathrm{~cm}$

$\therefore$ Volume of the cube $=(\text { side })^{3}=(2.5)^{3}=15.625 \mathrm{~cm}^{3}$

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