In the figure, the square GHJK is made up of two parts, L and M. The part, L, is formed by a semicircle and the line GH. The perimeter of L is 46 m and the perimeter of the shaded part, M, is 74 m.
- Find the perimeter of the square GHJK.
- Find the area of the shaded part M. (Take π =227)