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# GCSE Maths PIXL paper 1 predicted paper help

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1. does anyone know the answer to this question, I have no mark scheme or anything
2. I got h= 9r
3. (Original post by Sum Ting)
I got h= 9r
How did you work it out
4. (Original post by Bzzzzzb)
does anyone know the answer to this question, I have no mark scheme or anything

5. I think what you did was put 3r in for the cyliner radius instead of 2r
6. (Original post by Bzzzzzb)
How did you work it out
Here's how I did it.
Attached Images

7. (Original post by hamza772000)
Here's how I did it.
Cheers mate
8. (Original post by Bzzzzzb)
Cheers mate
No worries.
9. (Original post by hamza772000)
No worries.
Also in the mark scheme there is a question on a polygon where the answer is a dodecagon and don't understand it :
10. Sorry I don't know why that is upside down lol
11. (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 :
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.
12. does anyone have the link for the paper?

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13. (Original post by ksj.11)
does anyone have the link for the paper?

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

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