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Surface area of cube =6a^2
2646cm^2 =6a^2
a^2 =2646/6
a^2 =441
a^2=21^2
a=21
No. of edge in cube =12
Length of ribbon needed =12×21 =252cm
Thus,
Answer is option(c)
Hope it will help u...
Plz mark it as brainliest answer..
2646cm^2 =6a^2
a^2 =2646/6
a^2 =441
a^2=21^2
a=21
No. of edge in cube =12
Length of ribbon needed =12×21 =252cm
Thus,
Answer is option(c)
Hope it will help u...
Plz mark it as brainliest answer..
Zak11:
Thanks a lot
welcome
plz mark it as brainliest answer..
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