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1. Let R be the region bounded by the curves C1 : y -3 =-2(x - 1)', C2 : x + y = 4, and C3 : y = 1. (1,3) (0,1) (3,1) * X Set up (but do not evaluate) a definite integral or sum of definite integrals that is equal to the following. a. Area of R using vertical rectangles b. Length of the boundary of R along Ci c. Volume of the solid generated when R is revolved about the line r = 4 using washers. d. Volume of the solid whose base is R and whose cross-sections perpendicular to the y-axis are squares