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Mathematics 8 Online
OpenStudy (anonymous):

could someone please explain shell, disc and washer method with examples? i am so confused

OpenStudy (amistre64):

areas of circles and rectangles is all it amounts to

OpenStudy (amistre64):

A disc is the area of a circle a washer is the area of a large circle, minus the area of a small circle shells are the area of a rectangle that is f(x) tall and 2pix wide

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