The boundary of the garden is made of 12 sides each of length 13 m.

Perimeter of the garden = sum of the lengths of all sides

= 12 × 13

= 156 m

The garden in the given figure can be divided into 5 squares each of side 13 m.

∴ Area of the garden = 5 × area of each square part

∴ The perimeter and area of a garden are 156 m and 845 sq. m. respectively.