Question

a postage stamp is 12 mm in breadth and 20 mm in length. find the area of the stamp in (a) square millimetre (b) square centimetre and please send the answers in steps

Answer 1

Explanation:

Area of stamp = Length× Breadth

Area of stamp=12 mm×20 mm=240 mm

2 =2.4 cm2

∴ Correct answer option is D.

Answer 2

Answer:

12mm*20mm= 240mm^2

1.2cm*2cm=2.4cm^2

Explanation:

1cm =10mm

area = l*b