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    https://gyazo.com/e1bf245a7be3f829b66202e3764f481a

    Ffion’s Pizzeria serves two sizes of circular pizza of the same thickness.

    The small pizza has a diameter of 7 inches and costs £4.The large pizza has a diameter of 12 inches and costs £10.

    (a) Calculate the area of the top of the large pizza. [2]

    (b) By considering the area of the top of each pizza, decide which pizza is the better valuefor money. [4]

    How do you work this one out guys? I haven't done maths for 3 years and don't have the resources/equipment. Resitting Maths for Uni entrance to get from D to C+
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    (Original post by KyleH123)
    https://gyazo.com/e1bf245a7be3f829b66202e3764f481a

    Ffion’s Pizzeria serves two sizes of circular pizza of the same thickness.

    The small pizza has a diameter of 7 inches and costs £4.The large pizza has a diameter of 12 inches and costs £10.

    (a) Calculate the area of the top of the large pizza. [2]

    (b) By considering the area of the top of each pizza, decide which pizza is the better valuefor money. [4]

    How do you work this one out guys? I haven't done maths for 3 years and don't have the resources/equipment. Resitting Maths for Uni entrance to get from D to C+
    Starting with a), the question is basically saying : find the area of a circle with diameter 12 inches.

    Do you know how to find the area of a circle?
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    (Original post by KyleH123)
    https://gyazo.com/e1bf245a7be3f829b66202e3764f481a

    Ffion’s Pizzeria serves two sizes of circular pizza of the same thickness.

    The small pizza has a diameter of 7 inches and costs £4.The large pizza has a diameter of 12 inches and costs £10.

    (a) Calculate the area of the top of the large pizza. [2]

    (b) By considering the area of the top of each pizza, decide which pizza is the better valuefor money. [4]

    How do you work this one out guys? I haven't done maths for 3 years and don't have the resources/equipment. Resitting Maths for Uni entrance to get from D to C+
    First use the formula of Area = πr^2 where r= the radius of each pizza
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    (Original post by notnek)
    Starting with a), the question is basically saying : find the area of a circle with diameter 12 inches.

    Do you know how to find the area of a circle?
    the perimeters times the amount of sides, wasn't it?

    i've forgotten
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    (Original post by KyleH123)
    the perimeters times the amount of sides, wasn't it?

    i've forgotten
    You're getting a bit confused here. You don't normally use the word 'sides' when talking about a circle.

    The area of a cricle can be found using this formula:

    Area of a circle = pi x radius squared.


    You have been given the diameter so first you need to find the radius.

    Have another go and post your thoughts if you get stuck.
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    (Original post by notnek)
    You're getting a bit confused here. You don't normally use the word 'sides' when talking about a circle.

    The area of a cricle can be found using this formula:

    Area of a circle = pi x radius squared.


    You have been given the diameter so first you need to find the radius.

    Have another go and post your thoughts if you get stuck.
    oh god i'm embarrassed. I'm ill, excuse me
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    (Original post by notnek)
    You're getting a bit confused here. You don't normally use the word 'sides' when talking about a circle.

    The area of a cricle can be found using this formula:

    Area of a circle = pi x radius squared.


    You have been given the diameter so first you need to find the radius.

    Have another go and post your thoughts if you get stuck.
    r=
    C2π google told me this, could you explain this to meradius = diameter of circle divided by 2 pie?

    i don't know how to work out the radius.
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    (Original post by KyleH123)
    r=
    C2π google told me this, could you explain this to meradius = diameter of circle divided by 2 pie?

    i don't know how to work out the radius.
    Do you know what a diameter/radius are?

    A diameter is twice the length of the radius. E.g. if the diameter was 6cm then the radius would be 3cm.

    How are you learning GCSE? Do you have a textbook? Relying on Google is not the way to go.
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    (Original post by notnek)
    Do you know what a diameter/radius are?

    A diameter is twice the length of the radius. E.g. if the diameter was 6cm then the radius would be 3cm.

    How are you learning GCSE? Do you have a textbook? Relying on Google is not the way to go.
    No, past papers and online videos. I thought I'd remember more than I do.

    Maybe I'll get a text book.
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    (Original post by KyleH123)
    No, past papers and online videos. I thought I'd remember more than I do.

    Maybe I'll get a text book.
    I assume you are going to be taking the foundation GCSE paper?

    Area of a circle is a C level topic so don't be embarassed if you're finding it hard.

    But I really recommend that you buy a textbook.
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    (Original post by notnek)
    I assume you are going to be taking the foundation GCSE paper?

    Area of a circle is a C level topic so don't be embarassed if you're finding it hard.

    But I really recommend that you buy a textbook.
    I haven't booked my exam yet, but I'm aiming to go for higher paper.

    I still have plenty of time to catchup and I'm not very busy atm.

    My mental maths is strong but I never was good at this sort of stuff.
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    (Original post by KyleH123)
    I haven't booked my exam yet, but I'm aiming to go for higher paper.

    I still have plenty of time to catchup and I'm not very busy atm.

    My mental maths is strong but I never was good at this sort of stuff.
    Can I ask why you are taking higher if you need a C?

    Have you tried foundation past papers? You may find that it's easier to get a C in a foundation paper than in higher.
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    (Original post by notnek)
    Can I ask why you are taking higher if you need a C?

    Have you tried foundation past papers? You may find that it's easier to get a C in a foundation paper than in higher.
    I thought I might as well, an A looks better than a C and I have a lot of free time.
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    (Original post by notnek)
    Can I ask why you are taking higher if you need a C?

    Have you tried foundation past papers? You may find that it's easier to get a C in a foundation paper than in higher.
    in higher you only need around 30% for a C it's a lot lot easier to get a C with higher than foundation, many people i know who have very weak maths ability are put in for higher just because its a lot easier to get a C x
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    (Original post by notnek)
    Can I ask why you are taking higher if you need a C?

    Have you tried foundation past papers? You may find that it's easier to get a C in a foundation paper than in higher.
    is the area 38.465?

    diameter of 7 -- divided by 2 gives 3.5,

    radius of 3.5 squared gives 12.25, 12.25 x 3.14 = 38.465

    Area of a circle = pi x radius squared.
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    (Original post by KyleH123)
    is the area 38.465?

    diameter of 7 -- divided by 2 gives 3.5,

    radius of 3.5 squared gives 12.25, 12.25 x 3.14 = 38.465

    Area of a circle = pi x radius squared.
    is my answer correct? :c
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    (Original post by KyleH123)
    I thought I might as well, an A looks better than a C and I have a lot of free time.
    Yes if you're willing to put the work in and learn the higher topics then the higher paper is the way to go.
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    (Original post by notnek)
    Yes if you're willing to put the work in and learn the higher topics then the higher paper is the way to go.
    Yeah, I really want to get a good grade. Did I get the answer right in the end?
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    (Original post by KyleH123)
    is the area 38.465?

    diameter of 7 -- divided by 2 gives 3.5,

    radius of 3.5 squared gives 12.25, 12.25 x 3.14 = 38.465

    Area of a circle = pi x radius squared.
    Yes that's correct.

    For b) you need to first find the area of the small pizza and then work out which one is the best value for money.

    Have a go at this and post your working if you get stuck.

    I won't be able to help again tonight but hopefully someone else can. If not I can help tomorrow.
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    area of the large pizza is 113.04

    how do I work out which is best value for money?
 
 
 
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