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secondary 3 | A Maths
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Macdaddy
Macdaddy

secondary 3 chevron_right A Maths chevron_right Singapore

please help, i do not understand thank you!

Date Posted: 1 year ago
Views: 233

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Arnold K H Tan
Arnold K H Tan's answer
2102 answers (A Helpful Person)
1st
AT
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sstrike
Sstrike's answer
5364 answers (A Helpful Person)
Arnold K H Tan
Arnold K H Tan
1 year ago
Made a careless mistake at your second last line... its 6 x sqrt2, not 3 x sqrt2...

The approach you used, is the best, if the student is in Sec 3 and has not yet learnt the cosine rule.
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Arnold K H Tan
Arnold K H Tan's answer
2102 answers (A Helpful Person)
Careless mistake found and corrected.
sstrike
Sstrike
1 year ago
Thanks for the correction
Arnold K H Tan
Arnold K H Tan
1 year ago
Np