Perimeter of a Rectangle with Given Area Calculator

Are you looking to calculate the perimeter of a rectangle with a given area and a side? Then, you are in the right place. Our calculator will assist you in finding the perimeter of a rectangle right away. After inserting the area A and a side Side 1 (this is the side known to you), our calculator will give you the perimeter P.

Please read on to learn more about:

• The perimeter of a rectangle;
• Equations to find the perimeter of a rectangle; and
• Other calculators that will help you answer any questions related to a rectangle.

The perimeter is a quantity that measures the total length of 2-D or 3-D geometry's outer boundary: measurement starts from one point (say point z) and ends at the same point (point z). A rectangle is closed by four perpendicular sides, and two of them are unique. The perimeter of a rectangle equation is P=(a+b+a+b), which is basically a measure of all sides. In a simplified form: P=2×(a+b).

To use our calculator, follow the below points:

• First, you should know area A and at least one side of the rectangle;
• Insert the area value and known side value inside Area (A) and Side 1 (a) fields;
• Once inserted, our calculator provides you with the missing side Side 2 (b) and the perimeter of the rectangle P.
• Hurray! We believe now you can use our perimeter of a rectangle with given area calculator to find the perimeter of a rectangle quickly. If you are looking for ways to find every possible parameter related to a rectangle, you should check the next section.

Here, we present to you all the calculators that will help you find answers to any questions related to rectangles:

• Area of a rectangle calculator;
• Dimensions of a rectangle calculator;
• Diagonal of a rectangle calculator;
• Rectangle diagonal angle calculator;
• Perimeter of a rectangle calculator;
• Surface area of a rectangle calculator;
• Length of a rectangle calculator;
• Width of a rectangle calculator;
• Length and width of rectangle given area calculator;
• Length and width of rectangle given perimeter calculator;
• Rectangle scale factor calculator; and
• Square feet of a rectangle calculator.

You can use the following points to find the perimeter of a rectangle given area:

• You need to know at least one side of the rectangle: call it Side 1;
• Now use the area equation, i.e., A=Side 1 × Side 2 to find the unknown side Side 2; and
• Finally, use Side 1 and Side 2 to find the perimeter, i.e., P=2×(a+b).
• Awesome! Now you know how to find the perimeter of a rectangle. Use our perimeter of a rectangle with given area calculator to get the perimeter at supersonic speed!

To find the perimeter:

• Find the width w by diving the area A=20 cm^2^ by length l =4 cm, i.e., w=20/4=5; and
• Once you get the width (w), the perimeter is calculated as P=2×(w+l)=2×(5+4)=20 m.

The difference between area and perimeter are as follows:

• The area is a quantity that shows how much space a geometry occupies, whereas the perimeter gives us the measurement of the total length of the outer boundary of the geometry;
• The area of a rectangle equation is A=length×width, and the perimeter of a rectangle equation is P=2×(length+width).
• SI unit of area is m², and for perimeter, it is m.

The perimeter of this rectangle is 32 m. 11 m and 5 m are the length and width of a rectangle, respectively. Knowing length and width, you can calculate perimeter as P=2×(11+5)=32.