144

I can't understand what metric system you use here. I always have to convert 90 cm to inches to participate in such discussions. You know, this difference between countries is very inconvenient and I usually use different sites for converting. I hope one day there will be only one metric sign for all countries

A square is defined as being an object with four sides that are equal in length, if your square has a perimeter of 12 then each of its four sides must be 3 units