How many pieces of such rectangular paper are needed for a square 20cm long and 12cm wide? What is the circumference of the square How to write in formula

How many pieces of such rectangular paper are needed for a square 20cm long and 12cm wide? What is the circumference of the square How to write in formula

1. Because the least common multiple of 20 and 12 is 60,
So the minimum square is 60cm * 60cm
The number of pieces of paper required is the area of the square divided by the area of the original rectangular piece of paper
(60 * 60) / (20 * 15) = 15 tablets
The number of pieces of paper required is 15
2. The perimeter of the square is 60 * 4 = 240cm