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March 31st, 2015, 06:43 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, 06:46 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 06:50 AM. 

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area, circle, converting, degrees, finding, radians, sector 
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