In the figure, the square PQRS is made up of two parts, T and U. The part, T, is formed by a semicircle and the line PQ. The perimeter of T is 57 cm and the perimeter of the shaded part, U, is 85 cm.
- Find the perimeter of the square PQRS.
- Find the area of the shaded part U. (Take π =227)