Given: frame constructed from hollow rectangular tubes so that bending is about the strong axis $($x$-$axis$),$ as shown. Pinned supports at A and D$,$ pinned connection at C$.$

Report forces in kips, stresses in ksi $($kip$/$in $\{$:${?}^2)$

A$.$ Determine: reactions $A_x,A_y,D_x,D_y$

B$.$ Determine: normal stresses for the top and bottom surfaces at cross$-$section E$.$ Indicate whether Tension $($T$)$ or Compression $($C$)$ for each.

C$.$ Determine: normal stresses for the left and right extreme surfaces at cross$-$section F$.$ Indicate whether Tension $($T$)$ or Compression $($C$)$ for each.

D$.$ Determine: normal stresses for the top and bottom surfaces at cross$-$section G$.$ Indicate whether Tension $($T$)$ or Compression $($C$)$ for each.

E$.$ Determine: maximum shear stress at cross$-$section E

F$.$ Determine: maximum shear stress at cross$-$section G