what is the area of a 1/2 circle with a diameter of 14

Question

what is the area of a 1/2 circle with a diameter of 14

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RuslanHeatt 3 years 2021-07-18T17:33:41+00:00 1 Answers 11 views 0

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  1. Neala
    0
    2021-07-18T17:34:47+00:00
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    Answer:

    76.969 units squared

    or

    49pi/2

    or

    24.5 pi

    Step-by-step explanation:

    The equation for the area of a complete circle is

    A = \pi r^2

    Since there is only half a circle, the equation is divided by 2

    \frac{A}{2}=\frac{\pi r^2}{2}

    Given diameter 14, radius would be 14/2 = 7 units

    Plug into the equation for a half circle to solve for area

    \frac{\pi (7)^2}{2} = \frac{49\pi }{2} =24.5\pi = 76.969 units^2

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