1.find the difference between the areas of the bigger shape and the shape within. The bigger shape is a square and shape within circle so equation is l²-(1/4πd²) where l is length of one side of the square,π is 22/7 and d is diameter of the circle (8ft*8ft)-(1/4*22/7*8ft*8ft) 64ft²-352/7ft² 13.71 ft² is the area of the shaded area 2.(1/2bh)-(lw) where l is the length of the rectangle, w is the width of the rectangle,b is the base of the triangle, h is the height of the triangle. (1/2*6m*7m)-(4m*2m) 21m²-8m² 13m² is the area of shaded area.