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Determine the centre of gravity of the shaded area.

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The centroid of shaded area can be obtained By taking whole rectangle of 110 X 90 then Subtracting a triangle of base 75 & height 90 & square of side 50 X 50 from it. Also at the end Adding quarter circle of radius 50 to it

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Now, X=(Aixi)/(A)=367831.15/5988.49=61.42Y=(Aiyi)/(A)=341224.66/5988.49=56.98

Centroid of shaded region is (61.42,56.98) units

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