Question

A poster of size 10 cm by 8 cm is pasted on a sheet of cardboard such that there is a

margin of width 2 cm along each side of the poster. Find the total area of the margin. no I ​

Answer 1

Answer:

The total area of the margin is $= 88 cm^2$

Step-by-step explanation:

Length of the Poster is 10 cm

Width of the Poster is 8 cm

According to the Problem,

Length of the sheet of cardboard is (10 + 2x2) cm  [∵ at both ends there is margin of width of 2 cm] = 14 cm

And, Width of the sheet of cardboard is (8 + 2x2) cm  [∵ at both ends there is margin of width of 2 cm] = 12 cm

Therefore, the total area of the margin is

= Area of the cardboard sheet - Area of the poster

= (14x12 - 10x8) $cm^2$

$= (168 - 80) cm^2$

$= 88 cm^2$

Total Area of the margin =