Question

A postage stamp is 12 mm in breadth and 20 mm in length. find the area of stamp in
(a) mm²
(b) cm²

Answer 1

$\huge\blue{\mid{\fbox{\tt{QUESTION}}\mid}}$

$\huge\red{\mid{\underline{\overline{\textbf{ANSWER}}}\mid}}$

Area of stamp = Length×Breadth

Area of stamp=12mm×20mm

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀=${240mm^2}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀=${2.4cm^2}$

Answer 2

Answer:

• Area of postage stamp in mm² is 240 mm²
• Area of postage stamp in mm² is 240 mm²

Given :

• Breadth of the postage stamp = 12 mm
• Length of the postage stamp = 20 mm

To Find :

The area of the stamp in :-

• mm²
• cm²

Solution :

Here, as per the provided informations, we are given with the length and breadth of a postage stamp.

• Length = 20 mm
• Breadth = 12 mm

$\underline{ \sf{ \blue{Formula : }}}$

We'll apply the formula of area of rectangle,

• Length × Breadth

Area of the stamp in mm² :-

➙ 20 mm × 12 mm

➙ 240 mm²

Therefore, the area of postage stamp in mm² is 240 mm²

⠀⠀⠀__________________

Now, calculating the area of postage stamp in cm².

$\underline{ \sf{ \blue{Formula : }}}$

• Length × Breadth

Firstly, we need to convert the length and breadth into cm.

➙ Length = 20/10

➙ Length = 2 cm

$\star$ Breadth :-

➙ Breadth = 12/10

➙ Breadth = 1.2 cm

So,

➮ Area = length × breadth

➮ Area = 2 cm × 1.2 cm

➮ Area = 2.4 cm²

Therefore, area of postage stamp in cm² is 2.4 cm².