Re: [ ::: ♥Keep_Mailing♥ ::: ]™ Maths Question

Thank you very much for the answer and the detailed explanation.

Shabbir Taherali Dadabhai
Cellphone no +254723024308 Sent from my BlackBerry®

---

From: "J.Santhanakrishnan" <santhanam12345@gmail.com>

Date: Tue, 27 May 2014 11:13:29 +0530

To: <keep_mailing@googlegroups.com>

Cc: <dadabhai.shabbirtaherali0@gmail.com>

Subject: Re: [ ::: ♥Keep_Mailing♥ ::: ]™ Maths Question

After

​drawing

 the Dotted Line from D to B, if you take the Triangle ABD, if AB = BD then it is an Isosceles Triangle. In that case when   ̸͟   DAB is 55° given, then   ̸͟   ADB should also be 55°. Therefore  

​        

̸͟  

​

ABD will be 70° (180° – 55° – 55°) applying the rule of the sum of the angles of a triangle is 180°. 

As   ̸͟   CDA is given as 100° and inasmuch as    ̸͟ ADB is 55°,   ̸͟  BDC will be 45° only.

In the Triangle DBC as BC=BD it is also an Isosceles Triangle. When  ̸͟  BDC is=45° (since deduced) ,  ̸͟  BCD should also be 45°. Therefore   ̸͟  DBC will be 90° (180°-45°-45°) applying the rule of the sum of the angles of a triangle is 180°.

Now   ̸͟ ABD +  ̸͟ CBD = 70° + 90° = 160°. 

In the circumstances  the exterior angle ABC will be 

360° - 160°=200°

​ ​

On 26 May 2014 22:14, Shabbir Taherali Dadabhai <dadabhai.shabbirtaherali0@gmail.com> wrote:

Dear Friends.                                            Can you assist to solve the attached Maths Question for my son giving the method
Thanks
Shabbir Taherali Dadabhai
Cellphone no +254723024308    Sent from my BlackBerry®

--
You received this message because you are subscribed to the Google Groups "Keep_Mailing" group.
To unsubscribe from this group and stop receiving emails from it, send an email to keep_mailing+unsubscribe@googlegroups.com.
To post to this group, send email to keep_mailing@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.