June 13th, 2017, 07:52 PM  #1 
Newbie Joined: Jun 2017 From: Perth, Australia Posts: 1 Thanks: 0  Help please!
Is there a way to complete the angles of this circle or do we have insufficient information. The line does not pass through the centre of the circle so none of the rules that I've learnt are working. Thanks for your help 
June 13th, 2017, 09:26 PM  #2 
Math Team Joined: Jul 2013 From: काठमाडौं, नेपाल Posts: 384 Thanks: 32 Math Focus: Elementary Mathematics 
In part (b) those angles in the centre are not 90 degrees

June 14th, 2017, 10:23 AM  #3 
Senior Member Joined: Feb 2010 Posts: 618 Thanks: 96  
June 14th, 2017, 10:39 AM  #4 
Senior Member Joined: May 2016 From: USA Posts: 632 Thanks: 257  
June 15th, 2017, 08:21 AM  #5 
Senior Member Joined: Feb 2010 Posts: 618 Thanks: 96 
There is insufficient information to find angle $\displaystyle f^{\circ}$ in part b.
