Question

Find the volume of a cube each of whose side is (i) 5 cm (ii) 3.5 m (iii) 21 cm
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Answer 1

Answer:

i) 5cm

Volume of cube

$= {a}^{3} \\ \\ = {5}^{3} \\ \\ = 5 \times 5 \times 5 = 125 \\ \\ = {125cm}^{3}$

ii) Volume of cube

$= {a}^{3} \\ \\ = {3.5}^{3} \\ \\ = 3.5 \times 3.5 \times 3.5 = 42.875 \\ \\ = {42.875cm}^{3}$

iii) Volume of cube

$= {a}^{3} \\ \\ = {21}^{3} \\ \\ = 21 \times 21 \times 21 = 9261 \\ \\ = {9261cm}^{3}$

Hope it helps you from my side

:)

Answer 2

$\huge\red{A}\pink{N}\orange{S}\green{W}\blue{E}\gray{R} =$

i) 5cm

Volume of cube

a³

= 53

= 5 x 5 x 5 = 125

= 125cm³

ii) Volume of cube

= 3.53

= 3.5 × 3.5 x 3.5 = 42.875

= 42.875cm³

iii) Volume of cube

a³

= 21³

=

= 21 x 21 x 21 = 9261

=9261cm³

Hope it helps you from my side