How long does it take you to solve this geometric puzzle?

[Adam Goi]

Originally posted by roygoh
Anyone solved this already?

:gbounce: :gbounce: :gbounce:

Still trying to solve the @!$@#%@#$%# problem...

 

[roygoh]

Originally posted by AdamGoi


Still trying to solve the @!$@#%@#$%# problem...

Well, I spent 2 weeks worth of toilet and bedtime reading time to solve this @!$@#%@#$%# problem.

I have already typed up the solution and will post it here in 2 weeks time.

In the mean time, keep trying!

- Roy

 

[eryker]

[hint] you've gotta draw a line, then everything will be crystal clear... [/hint]

 

[hanoman]

40 rite?

 

[rumraisin]

geez. it's harder than it looks!

 

[Adam Goi]

Still trying to solve the @!$@#%@#$%# problem... ;(

 

[Silverelf]

Wah piang my brain already short circuiting liao... and I always was teerible in maths!!!

 

[maddog]

the solution is simple. dont think too complex. all the methods except one is already discussed. and the remaining one is elementary.

 

[omega]

hmmm... my answer is 20degrees. Spent 10sec solving but dunno if the qn is solved

 

[anthony.phua]

A stab in the dark answer..60 degrees

 

[rlce]

I got 30 deg. There are 3 triangles with the same angles and another 2 with another same set of angles. Am I right ?

 

[Shadus]

heh, if you think too deep and goes "&%^%(&%)*&", then you're most likely using the wrong method

there's two BIG hint above.

Add one more -> no complex formula involved. Think outside the box

 

[ckiang]

5 web developers
1 marketing manager
1 designer
5 days

problem still unsolved.

Regards
CK

 

[kenneth]

Originally posted by rlce
I got 30 deg. There are 3 triangles with the same angles and another 2 with another same set of angles. Am I right ?

?? how did you come up with the 3 triangles with same angles and 2 with same angles from????? :dunno:

hmm... i'm stuck also...

 

[bja]

wah me took at least 30 minutes but what I got was 30 degrees too..... but still not sure if my method is correct hhmmmm but I did draw a line and I did try to think out of the box? hhmmmm :dunno:

 

[pscion12]

30 degrees. Using simple geometric formulas.

 

[kenneth]

refresh my memory...
what are the geometry formulas?
I only remember all angles of the triangle add up to 180.. heee.. :dunno:

 

[aosis]

Personnel related:
1 Project Manager
1 Engineer

Answer:
30 Degrees

Time Taken:
Took whole afternoon.

 

[roygoh]

OK, here's the link to the solution.

http://roygoh.clubsnap.org/albums/album08/adn.jpg

I am sure this is not the only solution. You are welcomed to post your version here for comparison.

Thanks!

Roy

 

[ckiang]

Originally posted by roygoh
OK, here's the link to the solution.

http://roygoh.clubsnap.org/albums/album08/adn.jpg

I am sure this is not the only solution. You are welcomed to post your version here for comparison.

Thanks!

Roy

Don't quite understand, why "Add Point F on side AC such that angle FBC = 20°" ?

Where is the 20° derived from?

Regards
CK