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Mathematics: Post your doubts here!

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first do 0.1/2 = 0.05
then add 0.05 to 8 for upper bound = 8.55
nd then go on to area pie * 8.55 square, thn divide the answer by pie
same thing for lower bound but instead of adding 0.05 to 8 u subtract it
Thanks ;) I was thinking the same but I wasn't sure whether it was ryt or not...
 
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wrong
upper row,first column (2x5 + 1x1)=(11)
upper row,second column (2x0 + 1x5)=(5)
second row,first column (4x5 + 6x1)=(26)
second row,second column (4x0 + 6x5)=(30)
answer is 11 5
26 30
OK! I did the same but did sme blunders :p. anyways What 'bout the b part??
 
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Recognise properties of triangles, quadrilaterals and
circles directly related to their symmetries.

Recognise symmetry properties of the prism
(including cylinder) and the pyramid (including
cone)

what r the properties???
come on
anybody gonna answer this one?????
my exam is tomorrow
:cry::cry::cry::cry:
 
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Recognise properties of triangles, quadrilaterals and
circles directly related to their symmetries.

Recognise symmetry properties of the prism
(including cylinder) and the pyramid (including
cone)

what r the properties???

Anybody help please
Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 4 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.
 
Last edited:
Messages
150
Reaction score
235
Points
53
Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.
Thanks so much
 
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Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.
9th ques - chck m.s whether correct
px = x + 3
px -x =3
x(p-1) = 3
x = 3/(p-1)
 
Messages
150
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Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 2 from sides
Angle if symmetry is infinite from top/bot and 1 from side


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.
8)a)value where intersection between both is
8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps ;)
 
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9th ques - chck m.s whether correct
px = x + 3
px -x =3
x(p-1) = 3
x = 3/(p-1)
"You're damn right!" W.White
How did you do it tho?
Edit: stupid of me to ask xD, got it thanks for Q10!

8)a)value where intersection between both is
8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps ;)


Ah Mai God
Thanks a lot.
 
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f
Triangle properties are like..
They have 3 angles and 3 sides
The interior angle of a triangle adds up to 180*
The exterior angles of a triangle adds up to 360*
Number of lines of symmetry of a triangle = 3
Order of rotational symmetry of a triangle = 2

Quadrilaterals exterior angles add up to 360* and interior angles add up to 360*, they have 4 angles and 4 sides, Number of lines of symmetry are 4 and Order of rotational symmetry is 1

Cylinders lines of symmetry is infinite from top/bot (it's a circle) and 4 from sides
Angle if symmetry is infinite from top/bot and 1 from sides


HALP.
How to
Q8,9,10 in http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_22.pdf ?
Thanks.
for 8th a) chck where the two curves meet so adding them nd subtracting them gives u zero thn check value in x axis 45
 
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8)a)value where intersection between both is
8)b)value where the curve of sine is 0.5 higher than cos curve 0.5=10 squares then if sin is 10 squares higher than cos find the value of it

9)2m=200cm
nearest cm 200-1=199
199*32=6368cm now return it to m
6368/100=63.68

10)p=x/x + 3/x
p=1+3/x
p-1=3/x
x(p-1)=3
x=3/(p-1)

hope this helps ;)

for 9th one u subtract it by 0.5
(as 1/2 = 0.5)
so its 200-0.5 =199.5
rest is correct
 
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