Question

four metal cubes with edges 9 CM 6 CM 4 cm 2 cm are melted together and a single new cube is formed with the westage17 cm cube find the total surface area of the new cube ​

Answer 1

Total volume if all cubes =

= (9×9) + (9×9) + (4×4) + (2×2)

= 81 + 81 + 16 + 4

= 182m3

Vol. Of new cube = 182-17

= 165

Dimension of new cube =s= √165

Total surfacr area=6√165m2

Brainliest please