IGCSE MATHS Doubts

[thenewkid™]

2.5hrs left

[thenewkid™]

do u guys get tracing paper during ur exams?

[thenewkid™]

2 hrs left

if yes then keep the tracing paper on the triangle and draw over it. be4 moving the paper place a dot over (0,0) and turn the paper 90 degrees anti clockwise. plce the dot on the tracing paper above (0,0) and redraw the diagram.
hope this helped.

[Ghost Of Highbury]

Ok, so usually I can do transformations pretty well, like impromptu, but I'm having trouble with June 2007 Paper 4 Q. 2d)
How do you know where to draw the rotation in this case? I drew mine in quadrant 3, idk why..
If anyone can share some insight, that would be really helpful!!!  

try this method...join the center with all the three points..

next, for each line (joining the point and the center) make a perpendicular line towards the left...(because its anticlockwise)

after uve made the respective image lines...mesaure the the length of the object line and mark a point on the image line of the exact same length..

[thenewkid™]

ur supposed 2 get it!!

anyways try this. measure how far a certain point is from ur center of rotation eg A
then use a set square and plot a point the same distance away from center of rotation anticlockwise. and copy the rest of the points.

[aangel42]

try this method...join the center with all the three points..

next, for each line (joining the point and the center) make a perpendicular line towards the left...(because its anticlockwise)

after uve made the respective image lines...mesaure the the length of the object line and mark a point on the image line of the exact same length..

thanks! that makes perfect sense

[thenewkid™]

getting ready, leaving in 15 min, pray 4 me ppl

[Ghost Of Highbury]

thanks! that makes perfect sense

Good luck for paper 4..

[Ghost Of Highbury]

getting ready, leaving in 15 min, pray 4 me ppl

Good luck..!

[Baladya]

http://www.freeexampapers.us/IGCSE/Maths/CIE/2008%20Nov/0580_w08_qp_04.pdf

6)b)ii) plzzzz help i dunno how i forgot it right now :S 

[Ghost Of Highbury]

http://www.freeexampapers.us/IGCSE/Maths/CIE/2008%20Nov/0580_w08_qp_04.pdf

6)b)ii) plzzzz help i dunno how i forgot it right now :S 

okk..heres how u do it..
---------------RULE---------------------------------------------------
if class width = n * standard width, then, height = frequency/n
--------------------------------------------------------------------------
first lets find the standard width...the  height given = 11.5, its frequency is 115
therefore 11.5 = 115/n...=> n = 10
class width = 10 * standard width
2              =  10 * standard width
therefore standard width = 0.2
-----------------------------------------------------
now use this formula with standard width 0.2 to calculate the heights..
height = fequency * (standard width/classwidth)
1st - h = 35 * 0.2/10 = 0.7
2nd - 11.5 (given)
3rd - h = 26 * 0.2/2 = 2.6
4th - h = 24 * 0.2/6 = 0.8

[princess12]

mine is 4 hrs as well
why 4 hours 6394
reoly me fast urgently please 

[6394]

m leavin now
pray for me ppl
INSHAALLAH its gonna b easy 4 all ov us
BEST OF LUCK
 

[6394]

mine is 4 hrs as well
why 4 hours 6394
reoly me fast urgently please 

at de tym i postd 4 hrs wer lft 4 de ppr to start
ohk gud lck
 

[6394]

at de tym i postd 4 hrs wer lft 4 de ppr to start
ohk gud lck
 

u live in uae?