please show steps

Problem 10. ( 20 POINTS) DETERMINE THE DIMENSION y E ' X 35' FACH FOR THE PLYWOOD BOX BEAM FIGURE SHOIN YA. FLYIIIOOD SHEETS AT DICES ACH MEASIFE EXACTLY 12 THICK EACH y (12 2 X 4 WHICH HEACIRES y = Problem 11. ( 22 FONTS) DETERMINE THE DIMENS ON y FOR THE "WOOD "" BEAM FIGURE SHOLLN. (2)2 X 6 -PCHIMEADJRE 15' X 65. NA y PLYWOOD SHEET WHICH IS EXACTLY 1/2' THICK (2) 2 X + LFC MEASLES