Please solve this question

[dexoey]

Hi,

I have a math question for an exam and need answer ASAP. I have to solve a geometrical question, I have taken a picture from that and have uploaded it in my dropbox. You can see it by the following link:

https://www.dropbox.com/s/lzcsi6x9ncamufy/Geometry.JPG

Thank you

 

[dexoey]

We do not do homework.
Please show your work.
If you do not know the length of CD, then you need classroom help.

Hi,

thanks for reply but it´s not a homework. Instead it´s a sample for an upcoming entrance test. You can find it here:
http://www.metropolia.fi/fileadmin/...evät_2014_ENG/Pre-Info_Examples_BEng_2014.pdf


I tried my best but couldn´t solve it and need your help. Could you please help me?

 

[HallsofIvy]

You are given one angle and one leg of a right triangle. You can use trigonometry to determine the length of CD and so the length of AD. It is easy to get the length of BD and angle BDA and the "sine law" will give angle DAB.

 

[dexoey]

You are given one angle and one leg of a right triangle. You can use trigonometry to determine the length of CD and so the length of AD. It is easy to get the length of BD and angle BDA and the "sine law" will give angle DAB.

Thanks for your help, but I cannot understand how do you use Sine Law which gives u the answer? Because still a number of varints are unknown and it cannot help. Could you please specify that?

Thanks