Question

A painting 40cm long and 28cm wide is painted on a cardboard such that there is a margin of 2cm along each of its sides . Find the total area of the margin

Answer 1

Answer:

length of painting +margin= 40+2*2 = 44

width of painting+margin = 28+2*2  = 32

area of painting + margin = 44*32 = 1408 cm^2

area of painting = 40*28 = 1120

Area of margin = Area of painting and margin - area of painting = 1408-1120 = 288 cm^2

Step-by-step explanation:

Answer 2

Length of painting margin = 40+2*2 = 44
width of painting margin = 28 + 2*2 =32
Area of painting + margin =44*32 = 1408 cm^2
Area of painting =40*28 = 1120cm^2margin -area of painting =1408-1120 = 288cm^2