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Thread: Can anyone work out the How Much the Red Color Area?

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    Can anyone work out the How Much the Red Color Area?

    See this drawing:
    Square side = 10,
    how much is the red area?
    Can anyone work out the How Much the Red Color Area?-red10.jpg
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  2. #2
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    Re: Can anyone work out the How Much the Red Color Area?

    Quote Originally Posted by universalwing View Post
    See this drawing:
    Square side = 10,
    how much is the red area?
    Click image for larger version. 

Name:	RED10.jpg 
Views:	1 
Size:	14.8 KB 
ID:	39464
    The entire coloured area inside the square is $100$ square units.
    To answer your question, you must subtract the areas:
    1) the brown area,
    2) the complete area inside the large complete circle,
    3) the three green areas.

    Now I will not work this completely for you. You can pay a homework service to do that.
    The area inside the large complete circle is $(5)^2\pi$ square units
    Can you explain why the brown area is $\frac{1}{4}\left(100-25\pi)\right)$ square units?
    How do you find the area of one of the three green areas?
    Thanks from topsquark
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