Poh Hee Zhi (Wayne)'s answer to Ain's Secondary 4 A Maths question.

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Poh Hee Zhi (Wayne)
Poh Hee Zhi (wayne)'s answer
12 answers (Tutor Details)
For this type of question, do the conversion of the units asap. Don't convert later, makes answer very messy. Also just use pi itself, don't try to convert to a decimal. The important thing is to keep your answer concise.