9. Find the total area of cardboard used in making
a match box, complete with the sliding portion
4 cm long, 2.5 cm wide, 1.2 cm deep
(ignore the thickness of the cardboard.)
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1
Answer:
35.6 cm cube
Step-by-step explanation:
given, l=4 cm, b =2.5 cm, h= 1.2cm
Total area of card bord = 2(lb+bh+hl)
= 2(4 *2.5 + 2.5*1.2 + 1.2*4)
= 2(10+3+4.8)
= 2* 17.8
= 35.6 cm cube
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