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secondary 4 | E Maths
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Koh
Koh

secondary 4 chevron_right E Maths chevron_right Singapore

Can help me with part c. Thks

Date Posted: 2 months ago
Views: 125

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Tim
Tim's answer
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Koh
Koh
2 months ago
Can explain how you get angle pqr as 129? I thought shoule be 50.87. Thks
Tim
Tim
2 months ago
pqr is obtuse angle so must take the angle of sine in the 2nd quadrant. Hope this helps
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HiderApplecross
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1742 answers (Tutor Details)
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Koh
Koh
2 months ago
Hi the 129.1 is the obtuse angle PQR. Thought we are looking at acute angle PQR which is 50.87? So to find angle QPR= 180 - 27-50.87 correct?