April 20th, 2017, 12:22 PM  #1 
Member Joined: Nov 2012 From: The Netherlands Posts: 30 Thanks: 1  angle
Hello All This is another of my son's math issue, for a test he needs to make tomorrow I am assisting him , but would need some clarification here myself http://s9.postimg.org/sj88a4p67/20_04_2017_22_18_09.png AB = 7 , BC= 3, CG = 2 and AE=3 Q1) Find angle AEG Q2) find the angle that diagnoal CE makes with the side AE Thanks for any clarification here 
April 20th, 2017, 12:55 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 10,131 Thanks: 685 
Why isn't your son doing the posting? Much easier to help that way. Btw, had a look at your first few posts: you were not mentioning your son then... Last edited by Denis; April 20th, 2017 at 01:00 PM. 
April 20th, 2017, 11:23 PM  #3  
Member Joined: Nov 2012 From: The Netherlands Posts: 30 Thanks: 1  Quote:
at the age of 14 , kids are not linguistic capable to vent their issues in English(unless parents are from english descents...but we are not talking exceptions)...or if you understand Dutch . dan is het geen problematiek meer jongen. ....at least my kids are not capable to communicate on a forum level. Are canadian kids @ 14 capable communicating on french forums fluently (not hailing from quebec ofcourse)? If you look at my previous posts, they are all elementary school stuff and nothing to do with 'me '. I am working in the IT sector ( Scrum master & QA ) and these school stuff..I have been there in the 1980s but its all rusted now(I am 48 years). I have twins, both sons, and every now and then they come up asking assistance from me. Most I can solve ,but there are some hard eggs where I too need coaching. & Not that I am posting here every day , but this happens once in maybe 6 months when their exams are approaching( check the frequency of my posts). any more Proof you need.....,my linkedin profile, photograph, passport copy *PS: this is the reason, one of my posts goes over Paid subscriptions, so that people who really need assistance do not get police probes . But I was told, this is a free knowledge spreading level , where all are welcome without having to go in lengthy explanations of reasons to be here. and Oh..btw, I would still need the answer to my initial query, so if anyone is kind enough. Last edited by hello_math; April 20th, 2017 at 11:51 PM.  
April 21st, 2017, 12:21 AM  #4 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,289 Thanks: 441 Math Focus: Yet to find out. 
Q1) Angle AEG = angle AEF, this is because BF = CG = 2. Draw a straight line from F to intersect the line EA, you will make a new triangle. This new triangle has height EA  FB = 1, and length AB = 7. Treat AB as the 'opposite' side, and (EAFB) as the 'adjacent' side. Then, $\tan(\theta) = \dfrac{7}{32}$. So, $\theta = \tan^{1}(7) = 81.9^{\circ}$ Q2) For this you need to imagine a triangle that has height AE, and a base of AC. The length AC is the hypotenuse of the triangle ABC. $AC = \sqrt{BC^2 + AB^2} = \sqrt{58}$. So, $\tan(\theta) = \dfrac{\sqrt{58}}{3}$. Where AE = 3. Last edited by skipjack; April 21st, 2017 at 03:58 AM. 
April 21st, 2017, 02:01 AM  #5 
Member Joined: Nov 2012 From: The Netherlands Posts: 30 Thanks: 1 
Thanks a ton Joppy starting next week, the kids have their 'Meivakantie' (the annual May vacation) and I am pretty sure, this one's dedicated to you! Last edited by skipjack; April 21st, 2017 at 03:59 AM. 
April 21st, 2017, 02:42 AM  #6 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,289 Thanks: 441 Math Focus: Yet to find out.  Happy holidays!
Last edited by skipjack; April 21st, 2017 at 04:19 AM. 
April 21st, 2017, 04:06 AM  #7  
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 10,131 Thanks: 685  Quote:
I'm a typing finger, so are you I'll have you know that Canada is top exporter of maple syrup and hockey sticks! Last edited by Denis; April 21st, 2017 at 04:08 AM.  
April 21st, 2017, 04:19 AM  #8 
Global Moderator Joined: Dec 2006 Posts: 17,728 Thanks: 1359  
April 21st, 2017, 04:27 AM  #9 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,289 Thanks: 441 Math Focus: Yet to find out.  
April 21st, 2017, 04:34 AM  #10 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 10,131 Thanks: 685 
Come join me "in the corner"... Bring pencil and paper: we'll play XandO's... I start! 

Tags 
angle 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
The smallest angle in a triangle is 1 5 15 as large as the largest angle. The third  GIjoefan1976  Algebra  4  February 16th, 2016 12:55 PM 
prove that angle formed at orthocenter is supplement of the angle formed at the vertx  randomgamernerd  Geometry  2  November 17th, 2015 08:03 AM 
Calculating angle sin and sin angle without any functions.  Gyiove  Algebra  1  February 26th, 2014 04:57 PM 
prove Angle DFE=3 Angle AEF  Albert.Teng  Algebra  26  February 19th, 2013 06:21 PM 
The angle between two curves is the angle between  kingkos  Algebra  2  December 7th, 2012 05:34 PM 