Junior Cert 2011 : Maths Paper 2

Cakes. · 10-06-2011 07:47PM #1

Monday 13th June 2011.
Afternoon 2:00-4:00/4:30

All discussion and questions about Paper 2 goes here.

Good luck everyone!

10-06-2011 07:49PM

hope it goes well and some nice theroems come up.
dont know how i did in Paper 1

Slow Show · 10-06-2011 07:50PM

So I've realised I didn't do as well in Paper 1 as I thought I did. Optimistically I got around 90, possibly (probably) less, so I need to get a high B in Paper 2 to get the A. And I'm kinda crap at Paper 2.

Well, I might as well do something about it. Study for Paper 2 commences soon...

Cakes. · 10-06-2011 07:53PM

It's probably going to be dead hard since Paper 1 was relatively easy

Indiego · 10-06-2011 07:53PM

I hope we get some good theorums

and they dont throw us any more curve balls, like the venn diagram question on paper 1 :L

10-06-2011 07:57PM

Paper 2 is not that hard.
You can full marks in Q1,2 and 6 easily.
Q 4 & 5 are usually hard though

scipsss · 10-06-2011 08:02PM

trigonemety and statistics are my best ones

really needing to score high on them to do well

apparantly theorem 7 is bound to come up

Cakes. · 10-06-2011 08:11PM

Q4 should be the only one that will challenge me.

I really need to go over my theorems.

If I do really good in this I might scrape an A :pac:

Indiego · 10-06-2011 08:13PM

scipsss wrote: »

apparantly theorem 7 is bound to come up

which one would that be? :O

Cakes. · 10-06-2011 08:14PM

Is that the pythagoras one ?

cathalio11 · 10-06-2011 08:22PM

Indiego wrote: »

which one would that be? :O

Angle at the centre is twice the size of the angle at the circumference, standing on the same arc!

Indiego · 10-06-2011 08:36PM

cathalio11 wrote: »

Angle at the centre is twice the size of the angle at the circumference, standing on the same arc!

ooohhh yayy

i love that one

(well, as much as someone can love a theorum :L)

Desire. · 11-06-2011 01:07PM

Hoping for an A in this paper too. Just hope I can do the Geometry questions -- not my strong point.

P H A 7V T O M · 11-06-2011 01:12PM

Indiego wrote: »

ooohhh yayy i love that one (well, as much as someone can love a theorum :L)

Up until now I thought they were called "Theorems"! I wonder do you lose marks for spelling it like that? eg, if I called it "How to prove Pythagoras' Theorem"?

<Commenting on someone else's spelling makes you look, well...we all know how it makes you look. Let's not do it here.>

yellowsky169 · 11-06-2011 01:13PM

I'm starting to get paranoid that pythagora's theorem will come up again because everyone thinks it won't and paper 1 was'nt that bad...

imtryan · 11-06-2011 01:16PM

anyone else doin project maths
havent got a clue whats coming up

Desire. · 11-06-2011 01:16PM

P H A 7V T O M wrote: »

Up until now I thought they were called "Theorems"! I wonder do you lose marks for spelling it like that? eg, if I called it "How to prove Pythagoras' Theorem"?

Just in case you're not messing, you've been spelling it correctly. It is theorem.

FatRat · 11-06-2011 01:18PM

yellowsky169 wrote: »

I'm starting to get paranoid that pythagora's theorem will come up again because everyone thinks it won't and paper 1 was'nt that bad...

Draw the diagram and you get 7/20 marks.

No need to be too worried about it really. Especially since it came up last year.

yellowsky169 · 11-06-2011 01:23PM

FatRat wrote: »

Draw the diagram and you get 7/20 marks.

No need to be too worried about it really. Especially since it came up last year.

Aye problem is I kind of know that one but I don't have a clue about the circle one!:( Should probably get off the laptop and get learning it:)

Desire. · 11-06-2011 01:48PM

FatRat wrote: »

Draw the diagram and you get 7/20 marks.

Is that for all theorems or just Pythagoras'?

omg a kitty · 11-06-2011 01:54PM

yellowsky169 wrote: »

I'm starting to get paranoid that pythagora's theorem will come up again because everyone thinks it won't and paper 1 was'nt that bad...

Theyve never asked it before except last year, so the chances are really low that theyll ask it two years in a row

rorrissey · 11-06-2011 02:56PM

Oooh nevermind, stupid question I asked there. (: I figured it out myself. :L Ignore this!

FatRat · 11-06-2011 03:14PM

Desire. wrote: »

Is that for all theorems or just Pythagoras'?

All of them, if they are for 20 marks.

If you get a theorem worth 10 marks you'd get 3 for the diagram. 15 marks, you'd get 5.

You get attempt marks just for the diagram.

Moi Dix Mois · 11-06-2011 03:22PM

Any predictions for the theorems to come up on Monday?

Gah~ I cannot wait for maths to be over!

Of all the exams, maths just does my head in! Not too long now, I suppose...

TheRedDevil10 · 11-06-2011 03:44PM

These are the ones that will most likely come up

A diagonal bisects the area of a parallelogram
The measure of the angle at the centre of a circle is twice the measure of the angle at the circumference, standing on the same arc
If two sides of a triangle are equal in measue, then the angles opposite thes sides are equal in measure
The measures of the three angles in a triangle add up to 180'
A line through the centre of a circle, perpendicular to a chord, bisects the chord

Indiego · 11-06-2011 03:57PM

TheRedDevil10 wrote: »

These are the ones that will most likely come up
A diagonal bisects the area of a parallelogram

The measure of the angle at the centre of a circle is twice the measure of the angle at the circumference, standing on the same arc

If two sides of a triangle are equal in measue, then the angles opposite thes sides are equal in measure

The measures of the three angles in a triangle add up to 180'

A line through the centre of a circle, perpendicular to a chord, bisects the chord

Im praying that those ones come up :L
Poxy pythags better stay away :L

Does anyone know if we have to know the proof for the one to do with a parallel line splitting the sides of a triangle in equal ratios? my teacher gave us one, but its awfully long and complicated, and i only thought we had to know the theory behind it

:eek:

:pac:

Slow Show · 11-06-2011 04:03PM

Nah, that one doesn't come up, you just need to have an idea of it, as you wouldn't be able to prove Theorem 9 if you didn't know it.

I'd love if Pythagoras came up, I love that theorem tbh, it's my favourite of the harder ones. I need to go over theorems properly tomorrow...:/

OsamaObama321 · 11-06-2011 05:07PM

Slow Show wrote: »

Nah, that one doesn't come up, you just need to have an idea of it, as you wouldn't be able to prove Theorem 9 if you didn't know it.

I'd love if Pythagoras came up, I love that theorem tbh, it's my favourite of the harder ones. I need to go over theorems properly tomorrow...:/

ye its not that bad and if it came up its sure to be a 20mark question. too bad it most likely wont come up:(

her0fire · 11-06-2011 05:13PM

2 theorems in consecutive years has never happened so don't count on pythagoras to come up.
Anyone know how to do paper 1 Q 2 ( c ) ?
It was the one with the sets and there was one other question, it was express t in terms of s and r

VenomousFish · 11-06-2011 05:20PM

her0fire wrote: »

2 theorems in consecutive years has never happened so don't count on pythagoras to come up.
Anyone know how to do paper 1 Q 2 ( c ) ?
It was the one with the sets and there was one other question, it was express t in terms of s and r

I wouldn't be so sure. Our maths teacher told us that it was answered badly in general, so that might be reason enough for them to ask it again. I'm learning it, just to be safe. I think the question you're talking about is Q3 (a), which was the one with t in term of r and s. This is how I did it; t²-s=r

t²= r+s

t= √r+s Hope this helps

her0fire · 11-06-2011 05:29PM

VenomousFish wrote: »

I wouldn't be so sure. Our maths teacher told us that it was answered badly in general, so that might be reason enough for them to ask it again. I'm learning it, just to be safe.

I wouldn't bet on it but I'll still learn it though

Junior Cert 2011 : Maths Paper 2

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