three metal cubes with edges 6cm ,8cm,10cm are melted together and formed into a new cube . find the volume of and the surface area of the new cube
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Answer:
Step-by-step explanation:
Volume remains same so,
Volume of new cube = v1+v2+v3
= 6³+8³+10³
=216+512+1000
=1728 cm³
Now volume of new cube = a³= 1728
Edge of new cube = a = cube root of 1728.
a= 12
Therefore surface area of new cube = 6a²
=6×12²
=6×12×12
=864 cm²
asthagupta8:
thanks
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