Calculate the area of the composite figure above.
Area of the composite figure = Area of semi circle + Area of rectangle + Area of triangle
Area of semi circle = 12πr2=12×π×d24=12×227×4224=693m2
Area of rectangle = l x b = 42 x 60 =2520 m2
Area of triangle = 12×b×h=12×36×42=756m2
∴ Area of the composite figure = 693 + 2520 + 756 = 3969 m2