8. A match box is opened at both its end sides. Find
the area of paper used to make it if its length,
breadth and height are 5 cm, 3.5 cm and 1.5 cm
respectively.
50cm ^2
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Answer:
Answer
Given that l=20cm, b=12cm, h=9cm
∴T.S.A=2(lb+bh+lh)
=2[(20×12)+(12×9)+(20×9)]
=2(240+108+180)
=2×528
∴T.S.A=1056cm
2
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