## What is the formula for perimeter?

Perimeter, Area, and VolumeTable 1 . Perimeter FormulasShapeFormulaVariablesSquareP=4ss is the length of the side of the square.RectangleP=2L+2WL and W are the lengths of the rectangle’s sides (length and width).Trianglea+b+ca,b , and c are the side lengths.

## How do you find area and perimeter?

What is its area? Divide the perimeter by 4: that gives you the length of one side. Then square that length: that gives you the area. In this example, 14 รท 4 = 3.5.

## How do you find the perimeter of a rectangle if you know the area?

Perimeter of a Rectangle
1. 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)
2. Substitute the known values into the area formula. 36 = 4 * w. …
3. Substitute values for length and width into the perimeter formula.

## What is the perimeter of all shapes?

Perimeter Formulas
Geometric ShapePerimeter FormulaMetrics
Trianglea + b + ca, b and c being the side lengths
Rectangle2(Length + Width)
Square4aa =Length of a side
Trapezoida + b + c + da, b, c, d being the sides of the trapezoid

## What’s a perimeter in math?

Perimeter is the distance around the edge of a shape.