Consider the shaded area in $($Figure $1).$ Take a$=1\mathrm{.}8$ft$.$

Figure

Part A

Using integration, determine the area of the shaded area.

Express your answer in feet squared to three significant figures.

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Part B

Using integration, determine the distance bar$($y$)$ to the centroid of the shaded area.

Express your answer in feet to three significant figures.

bar$($y$)=[$

ft

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