Question

3. Find the volume in dm (and, therefore, in litres) of each of the cubes whose side is
(i) 1.7 cm
(ii) 23 cm
(iii) 1 dm 5 cm​

Answer 1

Answer:

1 cm = 0.1 dm

1 m³ = 1000 lires

1 dm³ = 1 litre

(i) Volume = (1.7 cm)³

= (0.17 dm)³ = 0.004913 dm³

Volume = 0.004913 dm³

Volume (in litres) = 0.004913 litres

(ii) Volume = (23 cm)³

= (2.3 dm)³ = 12.167 dm³

Volume = 12.167 dm³

Volume (in litres) = 12.167 litres

(iii) 1 dm 1 cm = 1 dm + 0.1 dm = 1.1 dm

Volume = (1.1 dm)³

= 1.331 dm³

Volume = 1.331 dm³

Volume (in litres) = 1.331 litres