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nutellaforhire
nutellaforhire asked in Science & MathematicsPhysics · 2 months ago

Pizza 50cm diameter vs 40cm x 60cm?

I am a stupid person, so I need to ask. How can I calculate how much larger the 40x60 Pizza is than the Pizza with the 50cm diameter? 

3 Answers

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  • billrussell42
    Lv 7
    2 months ago

    50 cm dia, 25 cm radius,

    area = πr² = π25² = 1960 cm²

    40x60, area = 40•60 = 2400 cm²

    rectangular one is larger by 440 cm² or 22%

  • Andrew Smith
    Lv 7
    2 months ago

    to keep the numbers simple just for you the area of the rectangle = 4*6 = 24  and of the circle = pi() * 25/4  so the ratio rectangle / circle

    = 24*4/(25*pi()) = 1.222 or 22.2% bigger

  • Anonymous
    2 months ago

    Area of a circle is pi * radius * radius

    Area of a rectangle is length * width

    Radius is diameter / 2

    Answer is Approximately 400 sq cm

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