Eric Nicholas K's answer to Candice lim's Secondary 3 E Maths Singapore question.
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Good afternoon Candice! Here are my workings for this question. I'm so sorry that my workings are very messy! I will rewrite them upon your request.
Date Posted:
4 years ago
Candice, if you let BEC = x, you will soon realise that
- in triangle EBD, angle EBD = x
- in triangle BEC, angle EBC = x
- in triangle ABC, angle ACB = x
So, triangles ABC, CBE and BED are all similar triangles.
We proceed to use numbers to find length ED.
I just realised that there is a shorter method than this.
- in triangle EBD, angle EBD = x
- in triangle BEC, angle EBC = x
- in triangle ABC, angle ACB = x
So, triangles ABC, CBE and BED are all similar triangles.
We proceed to use numbers to find length ED.
I just realised that there is a shorter method than this.
Thank you so much Mr Eric :)
Your working solution is clear and very neat, I can view and understand them well.
Hope you have a good day ahead and take care :)
Your working solution is clear and very neat, I can view and understand them well.
Hope you have a good day ahead and take care :)
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