Length and Width of a Rectangle Given Perimeter Calculator
MathFind the missing side of a rectangle from its perimeter and one known side.
Missing side (length)
The missing rectangle side
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Odeh Ahwal0people find this calculator helpful
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Math calculators
Frequently Asked Questions
Can the perimeter alone tell you the length and width of a rectangle?
No, the perimeter alone is not enough unless the rectangle is a square. At least one side must also be known to find the other.
What is the missing side of a rectangle with a perimeter of 10 and a width of 3?
The missing length is 2, since half the perimeter is 5, and 5 minus the known width of 3 equals 2.
What is the formula used here?
The formula rearranges the perimeter equation, P = 2 times the quantity length plus width, to solve directly for the missing side.
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