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# maths as level core 2 help watch

1. The are of the minor sector of a circle of radius 10cm is 95cm*2(squared).
Find i) the angle at the centre of the sector
ii) the arc length of the centre
iii) the perimeter of the sector
iv) the area of the major sector

????? can someone help me please
2. (Original post by Oswald Mosley)
However, I will not help you because you need to stop being a lazy bástard and do your own homework, it's the only way you'll learn.
A quite firm way of putting it but unless you are really having genuine trouble (which I don't believe - the questions speak for themselves), ask only then.

Open your textbook to the Chapter on Radians (Ch 9 from memory??) and read the first few theory pages.

(Original post by deepu05)
The are of the minor sector of a circle of radius 10cm is 95cm*2(squared).
Also, the first part of your sentence does not make any sense whatsoever.
3. (Original post by SuperiorHuman)
A quite firm way of putting it but unless you are really having genuine trouble (which I don't believe - the questions speak for themselves), ask only then.

Open your textbook to the Chapter on Radians (Ch 9 from memory??) and read the first few theory pages.

Also, the first part of your sentence does not make any sense whatsoever.

its from a book and i know it doesnt make sense that the whole point i'm stuck and i've looked through the whole chapter evn done every exercise but i dont understand it that the whole point of me asking for help...

if you dont want to help then theres no need for you to comment you idiot !!
4. (Original post by deepu05)
its from a book and i know it doesnt make sense that the whole point i'm stuck and i've looked through the whole chapter evn done every exercise but i dont understand it that the whole point of me asking for help...

if you dont want to help then theres no need for you to comment you idiot !!
5. Knowing Area of a sector=1/2(r^2theta) rearrange that to find theta. theta=0.2 rads
Arc length is r*theta so is 20cm^2
meaning the perimeter is that +2r-> 40cm^2

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Updated: March 31, 2011
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