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secondary 3 | E Maths
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nxrain
Nxrain

secondary 3 chevron_right E Maths

I need help with 12b pls. Length of BD=8.8624cm. tnx

Date Posted: 6 years ago
Views: 502

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James
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31 answers (Tutor Details)
1st
The cosine rule is helpful not only in finding lengths of sides, but also angles! With the angle of interest in mind, we can easily determine which sides to sub into the formula :)
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Koh Yi Shan
Koh Yi Shan's answer
7 answers (Tutor Details)