tag:blogger.com,1999:blog-6933544261975483399.post6514761639699351691..comments2024-03-26T19:10:02.918-07:00Comments on Go Geometry (Problem Solutions): Problem 422: Triangle, 24, 30 degree, Angle, CongruenceAntonio Gutierrezhttp://www.blogger.com/profile/04521650748152459860noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6933544261975483399.post-56832981743502242942016-06-18T06:29:09.108-07:002016-06-18T06:29:09.108-07:00Problem 422
Forming an equilateral triangle ABΕ (...Problem 422<br />Forming an equilateral triangle ABΕ (D is an interior point of triangle ABE). Then < AEB = 60 = 2.30 = 2.ACB so E is circumcenter of triangle ABC.Therefore AB=BE=AE=EC=DC and<br /><EAC=36=<ECA, <EDC=72 so <DEA=<DAE=36 then AD=DE. Is triangle ABD=triangle EBD<br />So <DBA=<DBE=30. Therefore <BDC=x=30+24=54.<br />APOSTOLIS MANOLOUDIS 4 HIGH SHCOOL OF KORYDALLOS PIRAEUS GREECE<br />APOSTOLIS MANOLOUDIShttps://www.blogger.com/profile/15561495997090211148noreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-32445618869883466242010-02-05T06:54:06.751-08:002010-02-05T06:54:06.751-08:00Ale:
Try to use html tags on your comments:
The HT...Ale:<br />Try to use html tags on your comments:<br />The HTML for a basic link looks like this:<br />< a href="http://URL">TEXT< /a><br /><br />This text will be highlighted, and when clicked on, the browser window will go to the address specificed by the URL.<br /><br />My email address is on the web pages.Antonio Gutierrezhttps://www.blogger.com/profile/04521650748152459860noreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-22166170791584099252010-02-05T05:17:55.303-08:002010-02-05T05:17:55.303-08:00Here goes again:
http://img218.imageshack.us/img2...Here goes again:<br /><br />http://img218.imageshack.us/img218/4855/solg.png<br /><br />Antonio: i can't directly copy a link when posting here, why? also, do you have any mail so that i can make you some questions?Alenoreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-10752908661532032092010-02-01T05:19:07.357-08:002010-02-01T05:19:07.357-08:00with the formula siny=sin(180-y) and the sine rule...with the formula siny=sin(180-y) and the sine rule in ABD and BDC<br />sin24.sin(150-x)=sin30.sinx<br />sin(150-x)=sin(30+x)=sin30.cosx+cos30.sinx<br />after substitution and division by cosx<br /> we have<br />tanx=sin30.sin24/(sin30-sin24.cos30)=tan54<br />x=54<br />.-.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-65825499819721673052010-01-31T21:06:29.366-08:002010-01-31T21:06:29.366-08:00The answer is not 48 degreesThe answer is not 48 degreesAntonio Gutierrezhttps://www.blogger.com/profile/04521650748152459860noreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-34974077090495518972010-01-31T19:03:43.823-08:002010-01-31T19:03:43.823-08:00Is the answer 48 degrees????Is the answer 48 degrees????Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6933544261975483399.post-64163246405547519432010-01-28T08:03:46.538-08:002010-01-28T08:03:46.538-08:00This comment has been removed by a blog administrator.Anonymousnoreply@blogger.com