May 19th, 2014, 05:43 PM  #1 
Newbie Joined: Feb 2013 Posts: 4 Thanks: 0  Please solve this question
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 
May 19th, 2014, 06:18 PM  #2 
Member Joined: Feb 2013 Posts: 80 Thanks: 8 
Use the sine law. In particular, use the sine law to find the length of $\displaystyle AB$, and then further use that length and the sine law to find the requisite angle. 
May 19th, 2014, 06:53 PM  #3 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,932 Thanks: 1127 Math Focus: Elementary mathematics and beyond 
BD = √(3) and AD = 4.6. m(ADB) = 150°. Use the law of cosines to find AB, then use the law of sines to find m(ABD). A calculator will be required.

May 19th, 2014, 07:02 PM  #4 
Math Team Joined: Dec 2013 From: Colombia Posts: 7,639 Thanks: 2624 Math Focus: Mainly analysis and algebra 
You have two sides and an angle of $\triangle{ABC}$ so you can work out the side AB (via the cosine rule) and then the sine rule will give you $\angle{ABC}$. You can then find $\angle{ABD}$ as required.

May 22nd, 2014, 08:22 AM  #5 
Newbie Joined: May 2014 From: JB Posts: 2 Thanks: 0 
add math project work 2014 Assignment No. 3 Assignment No. 4 i need help to do tis 
June 14th, 2014, 06:24 AM  #6 
Banned Camp Joined: Feb 2013 Posts: 224 Thanks: 6  Solve this one.
I've got a very easy problem for you. Take out a ruler and a pencil. How would you construct a triangle with the lengths of say, 4 centimeters, 6 centimeters, and 9 centimeters? Solve that first. 

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