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GCSE Maths PIXL paper 1 predicted paper help

image.jpgdoes anyone know the answer to this question, I have no mark scheme or anything
(edited 7 years ago)
I got h= 9r
Reply 2
Avatar for Bzzzzzb
Bzzzzzb
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Original post by Sum Ting
I got h= 9r


How did you work it out
Original post by Bzzzzzb
image.jpgdoes anyone know the answer to this question, I have no mark scheme or anything
Here's the mark scheme: https://drive.google.com/file/d/0B0NHL46meQP_YWlSbDlyaU9GSWM/view?usp=sharing

The answer is 9r.
Reply 4
Avatar for RonanH
RonanH
IMG_0108.jpg I think what you did was put 3r in for the cyliner radius instead of 2r
Original post by Bzzzzzb
How did you work it out

Here's how I did it.
IMG_20160521_200426.jpg222.1KB
Reply 6
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Bzzzzzb
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Original post by hamza772000
Here's how I did it.


Cheers mate
Original post by Bzzzzzb
Cheers mate
No worries.:smile:
Reply 8
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Bzzzzzb
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Original post by hamza772000
No worries.:smile:


Also in the mark scheme there is a question on a polygon where the answer is a dodecagon and don't understand it : image.jpg
Reply 9
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Bzzzzzb
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Sorry I don't know why that is upside down lol
Original post by Bzzzzzb
Also in the mark scheme there is a question on a polygon where the answer is a dodecagon and don't understand it : image.jpg
The triangle is an equilateral one, which means all the sides are equal, and all the angles = 60 degrees each.
If you split the top angle in the triangle,it would become 30 degrees and would be the exterior angle of the shape.
If you know the exterior angle is 30 degrees, you can work out the number of sides, simply by dividing 360 by it, so 360/30= 12, so the shape is 12 sided.
A 12 sided shape is known as a dodecagon.
Hope that helps.:smile:
Reply 11
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ksj.11
3
does anyone have the link for the paper?


Posted from TSR Mobile
Reply 12
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Bzzzzzb
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Original post by ksj.11
does anyone have the link for the paper?


Posted from TSR Mobile


No sorry I just have this paper here
Original post by ksj.11
does anyone have the link for the paper?


Posted from TSR Mobile
Here: https://drive.google.com/file/d/0B0NHL46meQP_MEl1b1MwSTdubXc/view?usp=sharing

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