Question

A picture is painted on a cardboard 800cm long and 5cm wide such that there is a margin of 1.5cm along each of its side. Find the total area of margin​

Answer 1

Step-by-step explanation:

length of figure=8oo cm

width of figure=5cm

length of figure along with margin=8oo+2×1.5=8oo+3=8o3cm

width of figure along with margin=8cm;

Area of margin=

area of figure along with margin-area of figure

=8o3×8-8oo×5

=8(8o3-1oo×5)

=8(8o3-5oo)

=8×3o3

=

$2424cm^{2}$