Jiayang's answer to wp's Secondary 4 A Maths question.
hello thanks for helping but the ans is incorrect
the answer is incorrect
Are you sure? What are the answers then? I'll check again.
56pi and 8.96 respectively
56pi is wrong. You can reverse calculate it to check and you'll realize the radius of hemisphere is 7.23 which is wrong. I'll show you the working.
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