Qualification > Math
IGCSE MATHS DOUBTS HERE !!!!
SauD~:
--- Quote from: Vin on February 15, 2011, 12:27:37 pm ---Theres just one acute angle between the two lines you draw :/
--- End quote ---
i am sorry, i got it before you helped me... :)
i make so many silly mistakes :P :-[
Thanks anyways :-[
SauD~:
I need help in question number three, part 1.
http://xtremepapers.net/CIE/Cambridge%20IGCSE/0580%20-%20Mathematics/0580_w10_qp_41.pdf
I got this paper in mocks, i did it correct but i forgot how i did :-[
It is x * (72x - 2x) ---> i forgot how i found this :-[
Thanks
$tyli$h Executive:
--- Quote from: $~SauD~$ on March 12, 2011, 05:52:17 pm ---I need help in question number three, part 1.
http://xtremepapers.net/CIE/Cambridge%20IGCSE/0580%20-%20Mathematics/0580_w10_qp_41.pdf
I got this paper in mocks, i did it correct but i forgot how i did :-[
It is x * (72x - 2x) ---> i forgot how i found this :-[
Thanks
--- End quote ---
The breadth of the rectangular enclosure is X.
Suppose the length is Y.
Total length of Fencing (given in question) = 72 metres. Thus total length of 3 sides = X + X+ Y=72 metres
Y = 72-2X
------------
Area = length X Breadth
=> X x Y
=> X x (72-2X)
=> 72X - 2X2
Done!
SauD~:
--- Quote from: $tyli$h Executive on March 12, 2011, 07:11:24 pm ---The breadth of the rectangular enclosure is X.
Suppose the length is Y.
Total length of Fencing (given in question) = 72 metres. Thus total length of 3 sides = X + X+ Y=72 metres
Y = 72-2X
------------
Area = length X Breadth
=> X x Y
=> X x (72-2X)
=> 72X - 2X2
Done!
--- End quote ---
Thanks man
+rep :D
i now noticed that 72 meter is total perimeter -.-
i thought it was the length which you mentioned as Y.
Thanks :D
$tyli$h Executive:
--- Quote from: $~SauD~$ on March 12, 2011, 07:15:25 pm ---Thanks man
+rep :D
i now noticed that 72 meter is total perimeter -.-
i thought it was the length which you mentioned as Y.
Thanks :D
--- End quote ---
You're welcome! :)
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version