You hear the word scale often when you work around people who produce or use geographic information. If you listen closely, you will notice that the term has several different meanings, depending on the context in which it is used. You will hear talk about the scales of geographic phenomena and about the scales at which phenomena are represented on maps. You may even hear the word used as a verb, as in scaling a map or downscaling.
The length is 88 cm, multiply the width by two and subtract it from the whole perimeter. Then divide the whole perimeter again by two to find the length of one side.