(1) Perimeter of a rectangle ABCD

= 2 x length + 2 x breadth

= 2 x 3.5 + 2 x 2.5

= 7 + 5

= 12 cm

∴ 12 cm

(2) Perimeter of a rectangle EFGH

= 2 x length + 2 x breadth

= 2 x 3.8 + 2 x 1.3

= 7.6 + 2.6

= 10.2 cm

∴ 10.2 cm

(3) Perimeter of a rectangle PQRS

= 2 x length + 2 x breadth

= 2 x 2.4 + 2 x 2.4

= 4.8 + 4.8

= 9.6 cm

∴ 9.6 cm

(4) Perimeter of a rectangle STUV

= 2 x length + 2 x breadth

= 2 x 3 + 2 x 2

= 6 + 4

= 10 cm

∴ 10 cm

(5) Perimeter of a triangle LMN

= 1.5 + 2.5 + 2

= 6 cm

∴ 6 cm