Math, asked by preetivishwa25, 2 months ago

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

Answers

Answered by jn781738

1

Step-by-step explanation:

length 40

breadth 28

perimeter 2(l+b)

2(40+28)

2(68)

136cm

perimeter of margin 4×side

4×2 8 cm

now plus all that 136+8=144cm

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