9. It requires 1322 cm long ribbon to tie a cubical gift pack
(Fig. 14.12). Find the length of the gift pack if 50 cm ribbon
is used in the flower knot.
1322-50
HINT: Perimeter
2
cm
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Answer:
Step-by-step explanation:
Surface area = 1322-50/2
=636cm
Total surface area of cuboid = 6a^2
636 = 6a^2
636/6 = a^2
106 = a^2
√160 = a
10.3 = a [approx]
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