How do you find the perimeter when given the area?
John Castro
Updated on July 01, 2026
How do you find the perimeter when given the area?
The relationship between area and perimeter of a square is that perimeter is 4 times the square root of the area. To get the perimeter from the area for a square, multiply the square root of the area times 4 . Perimeter is always measured in linear units, which is derived from the area’s square units.
How do you find the perimeter of a shape with the radius?
Divide the diameter into two to determine the radius. In the example, the radius of the circle is 5 inches. Multiply 2 by the radium and pi. In the example, 2 times 5 times 3.14, which equals a perimeter of 31.4 inches.
What does the perimeter of a parallelogram equal?
The perimeter of a parallelogram is the sum of the lengths of its four sides. For example, in the figure below, if PQRS is a parallelogram, then we know opposite sides are congruent, so PQ=10 and PS=6 .
What is the perimeter of of parallelogram WXYZ?
2
The perimeter of parallelogram WXYZ is 2(√17 + √5) units.
What is the formula for perimeter?
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 using area and length?
Perimeter of a Rectangle
- Remember the formula for perimeter and area of a rectangle. The area of a rectangle is a = length * width, while the perimeter is p = (2 * length) + (2 * width)
- Substitute the known values into the area formula. 36 = 4 * w.
- Substitute values for length and width into the perimeter formula.
What is perimeter formula?
What is the Formula for Perimeter? The total length of the boundary of a closed shape is called its perimeter. Hence, the perimeter of that shape is measured as the sum of all the sides. Thus, the perimeter formula is Perimeter(P) = Sum of all the sides.
How do you calculate the perimeter of a parallelogram?
The formula for the perimeter of a parallelogram is (width + height) x 2, as seen in the figure below: A parallelogram’s perimeter is calculated using the same formula as a rectangle, since in both shapes the opposite sides are equal in length.
How to find the area of a parallelogram?
Multiply the base of the parallelogram by the height to find the area.
What is the area of this parallelogram?
Area of Parallelogram. The area of a rectangle equals the product of its sides. The area of a parallelogram equals the product of one of its sides times the distance between that side and its parallel (and equal) mate.
What is the formula for height of a parallelogram?
A parallelogram is a 4-sided shape formed by two pairs of parallel lines. Opposite sides are equal in length and opposite angles are equal in measure. To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.
