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secondary 4 | E Maths
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secondary 4 chevron_right E Maths chevron_right Singapore

Please help me

Date Posted: 3 years ago
Views: 214

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Chua Yong Qi
Chua Yong Qi's answer
22 answers (Tutor Details)
1st
for (a), since you know all angles and a length, you can use the sine rule to find XW
for (b), use the length found in (a) to find area by sine method, since angle is given also
for (c), use cosine rule, since you know all the lengths but not any angles