(d) How much gift-wrap is needed to cover a box which measures 3 m by 2 mby 3 m?
be of side 6 m is to be painted. If the cost of painting
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Answer:
Step-by-step explanation:
Given
length = 5m
breadth= 3m
height= 3m
Total surface area of cuboid = 2(lb+bh+lh)
= 2(5×3+3×3+5×3)
=2 (15+9+15)
=2(39)
= 78m²
Gift wrap of 78m² is needed to wrap the box.
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