If the perimeter of a rectangle is known, finding the width is only possible if the length is also known. Infinite combinations of lengths and widths of a rectangle exist with any given perimeter.
The perimeter of a rectangle is given by the formula P = 2L + 2W, where P represents the perimeter, L represents the length and W refers to the width. If a given rectangle has a perimeter of 100 inches, the rectangle might have a width of 20 inches and a length of 30 inches. Two times 20 plus two times 30 does give a total perimeter of 100 inches. However, it is also possible that the width is 10 inches and the length is 40 inches.
if you have the length of one side  plus the perimeter. Divide the perimeter by 2, then subtract the known side  this leaves you with the unknown dimension. For example. Say you
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60+60 will give you the length of two sides of the rectangle. This = 120. 280120 will give you the length of the outside thats left over after measuring the width. This =160. divide
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Yes, if you know that it's a right, isosceles or equilateral triangle, you can compute the perimeter. However, if your triangle is a scalene, as most triangles are, you're out of
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This will be an exercise in creating a couple of equations from the text and then solving simultaneously. The area of a rectangle is L x W. So our first equation is simply: L x W
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