Maths, Addmaths and Statistics: Post your doubts here!

[bogus]

any suggestions where to do my final revision from other than past papers would be welcomed by me

 

[beeloooo]

if anyone could help me with the sum of angles in a pentagon , hexagon , etc ?????

 

[beeloooo]

lyk for pentagon we take 540 ?? is it ?? plz guide me ppl ....i am tensed about tomorrow nw

 

[syed1995]

lyk for pentagon we take 540 ?? is it ?? plz guide me ppl ....i am tensed about tomorrow nw

(n-2)*180 .. to get the sum of interior angles ..

n being the number of sides.

for hexagon

Sum of angles in a hexagon=
(6-2)*180
720 Degrees.

and if its a regular polygon and you need one sides' angle just divide the above by n.

 

[beeloooo]

(n-2)*180 .. to get the sum of interior angles ..

n being the number of sides.

for hexagon

Sum of angles in a hexagon=
(6-2)*180
720 Degrees.

and if its a regular polygon and you need one sides' angle just divide the above by n.

thanks alot

 

[syed1995]

thanks alot

Your Welcome

 

[pakiboy]

This is a past examination question about frequency polygon + er and ms. It doesnt ask anything about touching the axis:
View attachment 12206

bhai meray bta do knsa paper hay ye...........

 

[HarisLatif]

http://www.xtremepapers.com/papers/...Calculator Version) (4024)/4024_w10_qp_21.pdf Question 3 a part ii

 

[ahnime]

Please tell me a super difficult paper to do. I mean out of this world difficult. Other than the oness we got in 2010, 2011 (both zones) and 2007 May june. Please do tell.

 

[pakiboy]

This is a past examination question about frequency polygon + er and ms. It doesnt ask anything about touching the axis:
View attachment 12206

YAni mera sirf 1 mark kate ga yan phr point 5 shukar......................

 

[beeloooo]

Your Welcome

here u go !! plz solve this part it will surely make me understand this now !!

http://clickpapers.net/past papers/math-/4024_s05_qp_2.pdf

q.3 part (b)

 

[khizer shahab]

here u go !! plz solve this part it will surely make me understand this now !!

http://clickpapers.net/past papers/math-/4024_s05_qp_2.pdf

q.3 part (b)

oh its simple

see carefull that the shape is divided into three same parts as stated above about 3 rotational symmetry

becuase its symmetry is three multiply 105*3 and same for x*3

now apply formula for total internal angle (n-2)x180

now simply equate 315+3x=720

now solve it

hope its clear now !!

 

[Vogue]

http://www.xtremepapers.com/papers/...Calculator Version) (4024)/4024_s11_qp_21.pdf
Question 10 part b

 

[syed1995]

here u go !! plz solve this part it will surely make me understand this now !!

http://clickpapers.net/past papers/math-/4024_s05_qp_2.pdf

q.3 part (b)

Rotational Symmetry of three means 3 lines of symmetry, means there are 3 angles which are of one kind and 3 which are of other.

3z + 3(105) = (6-2)*180
3z + 315 = 720
3z=405
z=135 Degrees = Answer.

 

[khizer shahab]

http://www.xtremepapers.com/papers/CIE/Cambridge International O Level/Mathematics D (Calculator Version) (4024)/4024_s11_qp_21.pdf
Question 10 part b

for part b (i) you simply have to use formula pie(r)^2 x h = volume

now insert values you knew pie(r)^2 x (h= 5cm+12mm) = 0.2

 

[khizer shahab]

Rotational Symmetry of three means 3 lines of symmetry, means there are 3 angles which are of one kind and 3 which are of other.

3z + 3(105) = (6-2)*180
3z + 315 = 720
3z=405
z=135 Degrees = Answer.

ennh ,,...." Rotational Symmetry of three means 3 lines of symmetry," yeh kis ney kaha bhai !!??

 

[syed1995]

What was the question for the 12-sided polygon one?

the one where it asked for a polygon to fit in between those two 12-sided polygons?

 

[khizer shahab]

What was the question for the 12-sided polygon one?

the one where it asked for a polygon to fit in between those two 12-sided polygons?

I simplyn wrote triangle but most saying it was equilateral triangle !!

 

[syed1995]

ennh ,,...." Rotational Symmetry of three means 3 lines of symmetry," yeh kis ney kaha bhai !!??

In polygons walay questions mein yehi scene hota hai esp. in hexagons/pentagons ...

 

[syed1995]

I simplyn wrote triangle but most saying it was equilateral triangle !!

QUESTION KIA THA?

 

[khizer shahab]

In polygons walay questions mein yehi scene hota hai esp. in hexagons/pentagons ...

is parrallelogram or kite is a polygon??