Convert the following quantities as indicated :

(a) 12 inch = …………… ft

(b) 1 ft = …………… cm

(c) 20 cm = …………… m

(d) 4.2 m = …………… cm

(e) 0.2 km = …………… m

(f) 0.2 cm = …………… mm

(g) 1 yard = …………… m

(a) 12 inch = 1 ft

(b) 1 ft = 30.48 cm

(c) As,

1 cm = 10^-2 m

⇒ 20 cm = 20 x 1 cm = 20 x 10^-2 m

⇒ 20 cm = 0.2 m

(d) As,

1 m = 100 cm

⇒ 4.2 m = 4.2 x 100 cm = 420 cm

(e) 1 km = 1000 m

⇒ 0.2 km = 0.2 x 1000 m = 200 m

(f) 1 cm = 10 mm

⇒ 0.2 cm = 0.2 x 10 mm = 2 mm

(g) 1 yard = 0.91 m