Independent trials 2005 Q5.c)i) (1 Viewer)

[frootloop]

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]

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?

post the question up

 

[mattchan]

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