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secondary 2 | Maths
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Koh
Koh

secondary 2 chevron_right Maths chevron_right Singapore

Hi can help provide the solution for (b). Thks

Date Posted: 3 years ago
Views: 218

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Potatoo
Potatoo's answer
169 answers (A Helpful Person)
1st
Not sure if you will understand my working.. I tried to write it in detailed . XD
Potatoo
Potatoo
3 years ago
The hallow surface area is just half the curve surface area of a cylinder with a height of 28cm and a base circle with radius of 3cm... so it’s just 0.5(28cm x π(6cm)) -> 0.5(height x π(diameter))
Koh
Koh
3 years ago
Yes. I understand now. Thks
Potatoo
Potatoo
3 years ago
Np ! !