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Math Help - geometry area

  1. #1
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    geometry area

    see attachment for the picture. i have a picture and i need to fine the measurement of the rounded bit by using pie and radius. if you know the answer please post back. thanks. hope attachment works.geometry area-zz.bmp
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  2. #2
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    Quote Originally Posted by andyboy179 View Post
    see attachment for the picture. i have a picture and i need to fine the measurement of the rounded bit by using pie and radius. if you know the answer please post back. thanks. hope attachment works.Click image for larger version. 

Name:	zz.bmp 
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Size:	947.9 KB 
ID:	9034
    Your figur consists of 3 squares with the side length 3 and a quarter circle of radius 3. (see attachment)

    Not sure what exactly you have to calculate I'll give you the area:

    a = 3 \cdot \underbrace{3^2}_{area\ of\ one\ square} + \frac14 \cdot \underbrace{\pi \cdot 3^2}_{area\ of\ the\ circle}= 9\left(3+\frac \pi4 \right)

    and the circumference:

    c = 6 \cdot 3 + \frac14\cdot 2\cdot \pi\cdot 3 = 3\left(6+\frac \pi2\right)
    Attached Thumbnails Attached Thumbnails geometry area-quadrt_abgerdtecke.png  
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  3. #3
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    ok thanks alot for the answer
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