Arjun unfolds an empty matchbox (a cuboid) into a net. The box is 5 cm long, 3 cm wide, and 2 cm high. What is the total area of all six rectangles in the net?
Class 8Nets of SolidsGeometry
A124
B62
C56
D68
Step-by-Step Solution
Surface area = 2(lw + lh + wh) = 2(5×3+5×2+3×2)=2(15+10+6)=2×31=62cm2.
Answer: B) 62
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