Question

Can you guys help me do this sum??
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Answer 1

hey mate...

diagonal of a cube = √3a

its given that length of diagonal = 7√3

√3a=7√3

a=7cm

vol=a3

=7^3

=343cm^3

surface area=TSA=6a2

=6*49cm2

CSA =4a2

=4*49cm2

••••HOPE IT HELPS•••

Answer 2

volume of cube=l³

=7√3×7√3×7√3

=1782.280......... cu.cm