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 question on 3 triangles in a square
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By: keenlearner (offline)  Wednesday, December 26 2012 @ 08:38 AM CST (Read 1282 times)  

Can anyone help me with this question. Many thanks in advance.
(Edward: thanks for informing me that I did not post the question, then I realised that only jpeg file can be attached and not word document)

The square ABCD was cut into 6 parts using 5 straight lines. The length of the square is 15 cm.
Given that the ratio of AE : EG is 1 : 1, the ratio of BF : FG :GD is 2 : 1 : 3 and the ratio of BH : HC is 1 : 3.
Find the total area of the shaded part. (Ans:75cm2)

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By: echeewh (offline)  Thursday, January 03 2013 @ 07:09 PM CST  

Hi Keenlearner,

I think there could be some typo errors with the question with regards to the following (suspected errors shown below in red):

BH : HC is 1 : 3 --> BH : HD

BF : FG :GD is 2 : 1 : 3 --> BH : FG : GC

Appreciate you can reconfirm this again Big Grin . Thanks v much.

With these , pls find my worked solution as per attached.

Do let me know again if there 's any clarification.


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