Question

A painting 28 cm long and 15 cm wide is painted on a card board such that there is a margin of 2 cm along each sides find total area of margin

Answer 1

L of painting = 28 cm
B of painting = 15cm
with margin
total length = 28+2+2= 32(marging on both side )
& breath = 15+2+2= 19cm
area = LB
= 32*19 =608