The diagram shows the outline of a school playground shaped like the letter L, drawn on a grid where each square represents 1 metre. Its vertices, taken in order, are at (0, 0), (8, 0), (8, 3), (5, 3), (5, 6) and (0, 6).
(a)Calculate the perimeter of the playground.(3)
(b)Calculate the area of the playground.(3)