Table of Contents
How do you find out perimeter of a rectangle?
To find the perimeter of a rectangle, add the lengths of the rectangle’s four 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). Multiply both the height and width by two and add the results.
How do you find the perimeter and area of a rectangle?
The perimeter P of a rectangle is given by the formula, P=2l+2w , where l is the length and w is the width of the rectangle. The area A of a rectangle is given by the formula, A=lw , where l is the length and w is the width.
What is mean by perimeter of rectangle?
The perimeter of rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).
How do you find the width of a rectangle if you know the perimeter?
To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.
How do you find the perimeter of a rectangle without the length and width?
Add l + l + w + w. Instead of adding two sides of your rectangle and multiplying by two, you can simply add all four sides together directly to find the perimeter of your rectangle.
What are 2 ways to find perimeter?
Multiply the sum of the length and width by two.
- You are able to find the perimeter of the rectangle by adding length and width and multiplying by two because the opposite sides of a rectangle are equal in length.
- Both lengths of the rectangle are the same, and both widths are the same.
What is the perimeter of square and rectangle?
Perimeter, Area, and Volume
| Table 1 . Perimeter Formulas | ||
|---|---|---|
| Shape | Formula | Variables |
| Square | P=4s | s is the length of the side of the square. |
| Rectangle | P=2L+2W | L and W are the lengths of the rectangle’s sides (length and width). |
| Triangle | a+b+c | a,b , and c are the side lengths. |
How do you find the perimeter of a rectangle without the length?