
Trigonometry Trigonometry Math Forum 
 LinkBack  Thread Tools  Display Modes 
March 31st, 2015, 07:43 AM  #1 
Member Joined: Feb 2015 From: Planet Zorg Posts: 67 Thanks: 3  Converting degrees to radians and finding an area of a sector of a circle
Hi guys, Ok so 52 degrees in radians is 0.91 (to 2 s.f.) but what does it mean to leave my answer in terms of pi? And then to use my answer from above to find the area of a sector of a circle of radius 16cm and angle 52 degrees?! Now I'm really out of my depth, lol.. 
March 31st, 2015, 07:46 AM  #2 
Senior Member Joined: Jan 2012 From: Erewhon Posts: 245 Thanks: 112 
$180$ degrees is $\pi$ radian, so $52 \mbox{ degrees} = 52 \times \pi/180 \mbox{ radian}$ Area of a sector of radius $r \mbox{ cm}$ and angle $\theta \mbox{ radian}$ is $\theta r^2/2 \mbox{ cm}^2$ Last edited by CaptainBlack; March 31st, 2015 at 07:50 AM. 

Tags 
area, circle, converting, degrees, finding, radians, sector 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Help with finding an area of a sector  coolcat3  Algebra  4  October 8th, 2013 01:39 PM 
Degrees and Radians  not3bad  Algebra  4  October 3rd, 2013 11:43 PM 
Converting radians to degrees  hemidol  Algebra  1  April 8th, 2012 08:19 PM 
Area of a Sector of a Circle  Julie  Algebra  2  May 18th, 2009 12:41 PM 
Degrees and Radians  axelle  Algebra  7  October 22nd, 2007 02:48 PM 