(i) Perimeter of given figure = Sum of all sides
= 2 + 5 + 1 + 3.5 + 3.5 + 1 + 5
= 21 cm
(ii) Perimeter of given figure = Sum of all sides
= 1 + 8 + 4 + 5 + 1 + 4 + 3 + 8 + 1 + 8 + 4 + 5 + 1 + 4 + 3 + 8
= 68 cm
(iii) Perimeter of given sides = Sum of all sides
= 6 + 6 + 2 + 2 + 2 + 2 + 2 + 2
= 24 cm