F frootloop Member Joined Oct 26, 2004 Messages 356 Gender Female HSC 2005 Oct 9, 2005 #1 Help I can't figure out how to do this question... Even better- does anyone have the solutions to the paper so I can have a look?
Help I can't figure out how to do this question... Even better- does anyone have the solutions to the paper so I can have a look?
haboozin Do you uhh.. Yahoo? Joined Aug 3, 2004 Messages 707 Gender Male HSC 2005 Oct 9, 2005 #2 frootloop said: Help I can't figure out how to do this question... Even better- does anyone have the solutions to the paper so I can have a look? Click to expand... post the question up
frootloop said: Help I can't figure out how to do this question... Even better- does anyone have the solutions to the paper so I can have a look? Click to expand... post the question up
M mattchan Member Joined Jul 23, 2004 Messages 166 Gender Male HSC 2005 Oct 9, 2005 #3 Is that the one where u gotta prove P = 10Theta + 20Sin(Theta/2) Just split the triangle into two. Use Sin(Theta/2) = Half AB / 10. Make HalfAB the subject and double it. And just use L = rTheta to get the arc length
Is that the one where u gotta prove P = 10Theta + 20Sin(Theta/2) Just split the triangle into two. Use Sin(Theta/2) = Half AB / 10. Make HalfAB the subject and double it. And just use L = rTheta to get the arc length
