A is a type of polygon that consists of four . The sides of a rectangle are parallel to each other, and they have opposite sides that are equal in length. The of a rectangle is the distance around the , and it is d by adding the lengths of all four sides. In this article, we will discuss the steps on how to find the perimeter of a rectangle.

Step 1: Identify the Length and Width of the Rectangle

Before calculating the perimeter of a rectangle, you need to know its length and width. The length of a rectangle is the longer side, while the width is the shorter side. In most cases, the length and width are labeled on the shape, but if they are not, you can measure them using a ruler or a measuring tape.

Step 2: Calculate the Perimeter of the Rectangle

After determining the length and width of the rectangle, you can now calculate its perimeter. To do this, you need to add the lengths of all four sides. The formula for finding the perimeter of a rectangle is:

Perimeter = 2 × Length + 2 × Width

For example, if the length of the rectangle is 10 cm, and the width is 5 cm, its perimeter would be:

Perimeter = 2 × 10 + 2 × 5
Perimeter = 20 + 10
Perimeter = 30 cm

Therefore, the perimeter of a rectangle with a length of 10 cm and a width of 5 cm is 30 cm.

Step 3: Check your Answer

After calculating the perimeter of a rectangle, it is essential to check if your answer is correct. One way to do this is by verifying if the sum of the opposite sides is equal. In a rectangle, opposite sides are equal in length, therefore, find the sum of the length and width, then double it. If the result matches the initial perimeter value you have calculated, your answer is correct.

For example, using the previous example, the sum of the length and width is:

Length + Width = 10 + 5 = 15
2 × (Length + Width) = 2 × 15 = 30

The result is the same as the initial perimeter value we have calculated, which means that our answer is correct.

In conclusion, finding the perimeter of a rectangle is a simple process. All you need to do is identify the length and width of the shape, then use the formula, 2 x Length + 2 x Width, to calculate the perimeter. It is also essential to check your answer by verifying if the sum of the opposite sides is equal. By following these steps, solving perimeter problems involving rectangles can be much easier.

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