Ill. I'll lu lIle area or the path.3. A picture is painted on a cardboard 8 cm long and 5 cm wipicture is painted on a cardboard 8 cm long and 5 cm wide such that there ismargin of 1.5 cm along each of its sides. Find the total area of the margin

Ill. I'll lu lIle area or the path.3. A picture is painted on a cardbo

1.	Ill. I'll lu lIle area or the path.3. A picture is painted on a cardboard 8 cm long and 5 cm wipicture is painted on a cardboard 8 cm long and 5 cm wide such that there ismargin of 1.5 cm along each of its sides. Find the total area of the margin
Answer» Length (l) of cardboard = 8 cmBreadth (b) of cardboard = 5 cmArea of cardboard including margin = l × b = 8 × 5 = 40 cm2From the figure, it can be observed that the new length and breadth of the cardboard, when margin is not included, are 5 cm and 2 cm respectively.Area of the cardboard not including the margin = 5 × 2 = 10 cm^2Area of the margin = Area of cardboard including the margin − Area of cardboard notincluding the margin= 40 − 10 = 30 cm^2