Part B

As shown, a rectangle has a base of $b=7\mathrm{.}70ft$ and a height of $h=3\mathrm{.}20ft.($Figure $2)$ The rectangle's bottom is located at

a distance $y_1=1\mathrm{.}60ft$ from the $x$ axis, and the rectangle's left edge is located at a distance $x_1=1\mathrm{.}00ft$ from the $y$ axis.

What are $I_x$ and $I_y,$ the area's moments of inertia, about the $x$ and $y$ axes, respectively?

Express your answers numerically in biquadratic feet $($feet to the fourth power$)$ to three significant figures separated

by a comma.

View Available Hint$($s$)$

$I_x,I_y=,f{t}^4$

Part C

The semicircle shown $($Figure $3)$ has a moment of inertia about the $x$ axis of $87\mathrm{.}0f{t}^4$ and a moment of inertia about the $y$ axis

of $87\mathrm{.}0f{t}^4.$ What is the polar moment of inertia about point $C($the centroid$)?$

Express your answer numerically in biquadratic feet $($feet to the fourth power$)$ to three significant figures.

View Available Hint$($s$)$

$\frac{?}{\text{b}\text{a}\text{r}}(J{)}_C=f{t}^4$