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secondary 3 | E Maths | Congruence And Similar Tests
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mint
Mint

secondary 3 chevron_right E Maths chevron_right Congruence and Similar Tests

pls help with 4c

Date Posted: 6 years ago
Views: 541
LIU SHAOMIN
LIU SHAOMIN
6 years ago
It seems quite impossible to solve this question though. I have a way to solve this using a triple simultaneous equation, but it is quite tedious. you mind sharing how you find the answer for line AD?
mint
Mint
6 years ago
hello, sure thing ! will share my workings for line AD : 9/AD = AD/16
AD^2 = 16x9
AD = 12
LIU SHAOMIN
LIU SHAOMIN
6 years ago
Your method is simpler than mine, but you miss out that the whole diagram can be separated into three triangles, you can repeat the same method on the third triangle to solve for AB

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LIU SHAOMIN
Liu Shaomin's answer
22 answers (Tutor Details)
1st
The diagram can be separated into three similar triangles