Question

3 cube of metal with edges 3 cm 4 cm and 5 cm are melted to form a single cube find the total surface area of cube formed.

Answer 1

volume of 1 cube= 3*3*3+4*4*4+5*5*5
a*a*a= 27+64+125
a= 6 cm
tsa = 6l*l
6*6*6
216

Answer 2

volume of cube= 3×3×3+4×4×4+5×5×5
a^3=27+64+12
a^3=216
i hope it helps you....