a INCERT 7 volume th, bre as 1:2 rface ar (1) The total surface area of a cube is 36 cm The volume of the cube is (a) 8 cm3 (6) 512 cm (c) 64cm clarom (exemplar] [c] (2) The Lateral surface area of a cube is 256 m² The volume of the cube is. (NCERT - (a) 512 m3 (b) 64m² (6) 216 m (1) 256m² (EXEMPLAR (a) (3) The length of the lorrgest pole that can be but in a room of dimensions (low xiomx5m) es (as is m (b) 16 m (elom (d) 12m (NCERT ] LExemplar] [a] (4) The number of planks of dimensions C4mx 50cm x 20cm) that can be stored in a pit which is 16m long, 12m wide and 4 m deep is (a) 1900 (W) 1920 (c) 1800 (d) 1840 [Exemplar] Сь] 15) The radius of a hemispherical balloon inereases from 6cm bo 12cm as air is being pumped into it. The ratio of the surface area of the balloon in the two cases is [exemplar] (a) 1:4 (6) 1:3 (0) 2:3 (2) 2.4 [a]