how to find perimeter of a rectangle

To find the perimeter of any rectangle, add all of the sides up: , where P = perimeter,  l = length, w = width. So x = 7m No, the "oddness" of the shape makes it impossible to know the perimeter without more information. The perimeter of a rectangle is found by adding up the length of all four sides. Can I find the perimeter if I don't know the length of the sides? If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). University of Oregon, Bachelor in Arts, Biochemistry and Molecular Biology. Ensure you are working with a true rectangle. Now plug the width and length into the formula for perimeter: Find the perimeter of a rectangle that has a length of  and a width of . Solve for  to find a width of 4 inches. In this problem, you add length and width together first because this part of the equation occurs in parentheses. Find the perimeter of the rectangle? The perimeter is the sum of the side lengths, which in this case is 14 feet + 4 feet +14 feet + 4 feet, or 36 feet. This article has been viewed 220,787 times. How do I find the perimeter of a rectangle if I have the area, x squared - 81, and that's it? Because opposite sides of a rectangle are equal, both lengths will be the same and both widths will be the same. This formula comes from the fact that there are 2 lengths and 2 widths in every rectangle. Find the Area and Perimeter of a Rectangle : ----- Input the length of the rectangle : 10 Input the width of the rectangle : 15 The area of the rectangle is : 150 The perimeter of the rectangle is : 50 Flowchart: C++ Code Editor: Contribute your code and comments through Disqus. Then, add these measurements together. a You can't graph a function or plot ordered pairs without a coordinate plane! The perimeter of a rectangle is 40cm & its breadth is 4cm less than the length. What is the perimeter? If you are calculating the perimeter of a rectangle in real life, use a ruler, yardstick, or tape measure to find the length and width of the area that you are trying to measure. A four-sided polygon having two dimensions i.e. To find the perimeter of a rectangle, add the lengths of the rectangle’s four sides. Example: L = 14 centimeter (5.5 in), l1 = 5 centimeter (2.0 in), w1 = 4 centimeter (1.6 in), w2 = 6 centimeter (2.4 in). Sometimes you’ll see the perimeter formula as P=2l+2w P = 2l + 2w Breadth of the rectangle The area of a rectangle is the width times the height, and we are told that in this rectangle the width is two times the height. Therefore, the perimeter of a rectangle = 30 cm. The perimeter is the distance all the way around the outside of a 2D shape. Multiply both the height and width by two and add the results. Use area formulas for these simpler shapes to help you find all the side lengths of the complex shape. To calculate the perimeter of the rectangle we have to add all the four sides of the rectangle. For example, P = 2 * (14 + 8) = 2 * (22) = 44 centimeter (17.3 in). on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney. What is the Coordinate Plane? Convert the dimensions from yards to feet by multiplying by 3: This makes the dimensions 600 feet and 1,200 feet. Example: L = 14 centimeter (5.5 in), W = 10 centimeter (3.9 in), l1 = 5 centimeter (2.0 in), l2 = 9 centimeter (3.5 in), w1 = 4 centimeter (1.6 in), w2 = 6 centimeter (2.4 in), P = L + W + l1 + l2 + w1 + w2 = 14 + 10 + 5 + 9 + 4 + 6 =, For an “L”-shaped compound rectangle, use the formula. This is why you write the equation as a multiplication of the sum of the length and width by 2. either the copyright owner or a person authorized to act on their behalf. Multiply the sum of the numbers by 2 to get the perimeter, which in this case would be 44 cm. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. an We know, Hence, perimeter of the rectangle is 24 cm. How do I find the total square area if one rectangle is 32 sq area and one is 48 sq area? If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Divide the area of the rectangle by the width in order to find the length of 14 feet. Area = 108 cm². The picture above shows a rectangle where the top … Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially Area is calculated by the length times the width. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e4\/Find-the-Perimeter-of-a-Rectangle-Step-1-Version-2.jpg\/v4-460px-Find-the-Perimeter-of-a-Rectangle-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/e\/e4\/Find-the-Perimeter-of-a-Rectangle-Step-1-Version-2.jpg\/aid2952492-v4-728px-Find-the-Perimeter-of-a-Rectangle-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"