ceminess Posted January 22, 2004 Share Posted January 22, 2004 A circle is inscribed in a square, if the area of the circle is 4π (pie or pi however you prownounce/spell it) what is the total area of the shaded regions i attached a pic :p help is appriciated, i am just trying to help a friend with his geometry homework. :) Link to comment Share on other sites More sharing options...
ItchyAnus Posted January 22, 2004 Share Posted January 22, 2004 You know the area of the circle. Take the formula that calculates the area of the circle and get the radius from it. 2 times the radius is the length of a side of the square. You can get the area of the square. Subtract the area of the circle from the square. Link to comment Share on other sites More sharing options...
enriq760 Posted January 22, 2004 Share Posted January 22, 2004 yep its just like that lol i was going 2 explain it but in spanish is so much easyer :p Link to comment Share on other sites More sharing options...
zhangm Supervisor Posted January 22, 2004 Supervisor Share Posted January 22, 2004 Area of grey = (16-4pi) Area of circle is Pi(radius)^2, therefore, each side of the square is 4 units long. Area of square is 16 units^2, minus area of circle (4pi), is... Link to comment Share on other sites More sharing options...
evan Posted January 22, 2004 Share Posted January 22, 2004 radius = (4pi / pi)^(1/2) = 2 (sorry, lazy for those symbols) area of the square = (2*2)^(2) = 16 therefore, area of the shaded area = 16 - 4pi = 3.44 (take pi for 3.14) Link to comment Share on other sites More sharing options...
ceminess Posted January 22, 2004 Author Share Posted January 22, 2004 thanks, lol now i feel dumb Link to comment Share on other sites More sharing options...
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