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secondary 4 | E Maths
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Kornelius Xiao Hew
Kornelius Xiao Hew

secondary 4 chevron_right E Maths

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Date Posted: 2 years ago
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Han Xu Guang
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Han Xu Guang
Han Xu Guang
2 years ago
alternatively, ratio of surface area can be calculated as (1/3)^2=1/9