Answer:
196
Step-by-step explanation:
if a is the cube side then the length of the diagonal = a√3
so a√3= 7√3
so a=7
and lateral surface area = 4a^2 = 4*7*7= 196
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Answers & Comments
Answer:
196
Step-by-step explanation:
if a is the cube side then the length of the diagonal = a√3
so a√3= 7√3
so a=7
and lateral surface area = 4a^2 = 4*7*7= 196