# How many marks? Edexcel gcse maths paper3

Hi, there was a 5 mark question for calculating the surface area of a frustum.
(a cone was split into a smaller cone and a frustum)
I did every single thing correct EXCEPT calculate the correct radius for the small cone so my answer and all my workings used the wrong values.

How many marks do I lose because of this?
ooh i did this qs and got it right, hopefully
oof quite alot...cuz then most of ur answer is affected
u were meenna divide the length of the big one by the small one and then use that value to find the small radius (if tht makes ssnese)
u might get like 2/3 marks, depends rlly
Original post by A____J
ooh i did this qs and got it right, hopefully
oof quite alot...cuz then most of ur answer is affected
u were meenna divide the length of the big one by the small one and then use that value to find the small radius (if tht makes ssnese)
u might get like 2/3 marks, depends rlly

I have no idea what I was doing in the exam bruh, I need an 8 for further maths but I think i got between 166-174 so im not sure ill get it
Original post by Mikaelious
I have no idea what I was doing in the exam bruh, I need an 8 for further maths but I think i got between 166-174 so im not sure ill get it

heh lol, that qs is the only one i got right, im tellin u now lol
an 8??? dude, i just want a 4/5 in further maths lol
but great for you if u get it! : )