A rectangle is 30 cm long and 20 cm wide. A rectangular strip added to one side and another of the same widthto the other results in the doubling of the area. Find the area of the strip.

Answer 1

30x20 = 600 cm^2

IF the area is doubled, that's 1200 cm^2

the area of the strips would be 1200-600= 600 cm^2

if there's 2 strips on either side, that would make each 300 cm^2 in area