James's answer to Lin Amanda 's Secondary 1 Maths question.
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The technique is to break up the shaded area into smaller, manageable parts. There aren't many possibilities, so we try to use any combination of smaller parts whose lengths we already know, or can easily find.
Once you are familiar with the method, the answer can be condensed:)
Once you are familiar with the method, the answer can be condensed:)
Date Posted:
6 years ago
Thank you so much for your detailed explanation.