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Math Help - please find the area and perimeter

  1. #1
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    please find the area and perimeter

    please find the area and perimeter
    Attached Thumbnails Attached Thumbnails please find the area and perimeter-perimeter.jpg  
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  2. #2
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    Re: please find the area and perimeter

    What does finding the area and perimeter get us?
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  3. #3
    Senior Member MaxJasper's Avatar
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    Lightbulb Re: please find the area and perimeter

    Circle segment area:

    r\text{:=}1;
    \theta \text{:=}30*\frac{\pi }{180};
    \text{segmentHyG}\text{:=}\frac{1}{2}r^2(\theta -\text{Sin}[\theta ]) = \frac{1}{2} \left(-\frac{1}{2}+\frac{\pi }{6}\right)

    Central square area:


    (2\text{Sin}[15{}^{\circ}])^2 = \frac{1}{2} \left(-1+\sqrt{3}\right)^2

    S\text{:=}4\text{segmentHyG}+(2\text{Sin}[15{}^{\circ}])^2 = \frac{1}{3} \left(3-3 \sqrt{3}+\pi \right)

    Perimeter:

    Perimeter= 4 \text{arcHyG}\text{:=}r \theta = \frac{2 \pi }{3}
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  4. #4
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    Re: please find the area and perimeter

    Quote Originally Posted by albert940410 View Post
    please "find" the area and perimeter
    Click on your thumbnail: you'll "find" them on left of figure...welcome
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