Question

A picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 CM along each of its sides find the total area of the margin​

Answer 1

Step-by-step explanation:

area 30cm

ok

hope it is helpful

Answer 2

Question :-

Licture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1. 5 cm along each of its sides. Find the total area of the margin.

Given :-

• length = 8cm

• Breadth = 5 cm

• Margin along sides = 1.5cm

formula used :-

• Area = length × breadth

Solution :-

= l × b

= 8 cm × 5 cm

= 40 ${cm}^{2}$

Width of the margin = 1.5 cm

Length of the inner cardboard

= 8 cm – 1.5 × 2 cm

= 8 cm – 3 cm

= 5 cm

Breadth of the inner cardboard

= 5 cm – 1.5 × 2 cm

= 5 cm – 3 cm

= 2 cm

Area of the inner rectangle = l × b

= 5 cm × 2 cm

= 10 ${cm}^{2}$

Area of the margin

= 40 ${cm}^{2}$ – 10 ${cm}^{2}$

= 30 ${cm}^{2}$

Hence, the required area = 30 ${cm}^{2}$