Very Short Answer Type Questions
5. Find the surface area of a box whose length is 40 cm, breadth 27 cm and height 10
6. How many tiles of dimension 22.5 cm x 10 cm x 7.5 cm can be painted if the pair
just sufficient for the surface area 2812.50 m2 ?
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5. Surface area = 2(lb+bh+lh)
= 2(40*27+27*10+40*10)
= 2(1080+270+400 cm square)
= 2*1750
= 3520 cm square
= 2(40*27+27*10+40*10)
= 2(1080+270+400 cm square)
= 2*1750
= 3520 cm square
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