Q4 of 14 Page 309

Find the volume of each of the cube whose sides are.

(i) 6.4 cm (ii) 1.3 m (iii) 1.6 m.

(i) Side = 6.4cm

Volume of cube = (side)3


= (6.4) 3


= 6.4 × 6.4 × 6.4


= 262.144 cm3


(ii) Side = 1.3cm


Volume of cube = (side)3


= (1.3) 3


= 1.3 × 1.3 × 1.3


= 2.197 m3


(iii) Side = 1.6m


Volume of cube = (side)3


= (1.6) 3


= 1.6 × 1.6 × 1.6


= 4.096 m3


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