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From a square metal sheet of side 28cm a circular sheet is cut off. find the radius of the largest possible circular sheet that can be cut .also find the

area of the remaining sheet




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Diameter of largest circle that can be cut is 28cm. (see picture)
So radius = 28/2 = 14cm

Area of remaining sheet = area coloured 
=area of square - area of circle
=28² - π×14²
=784 - 615.44
=168.56 cm²

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