Quadrilateral Perimeter Calculator
Quadrilateral Perimeter Calculator — sum the four sides of a quadrilateral to find its perimeter.
Formula
Perimeter = Side₁ + Side₂ + Side₃ + Side₄
- A quadrilateral is a 4-sided polygon.
- Perimeter = sum of all four sides.
- Common quadrilaterals: rectangle, square, trapezoid, parallelogram, rhombus.
Rectangle 5 × 6 (sides 5,6,5,6)
Inputs
- Side 1 (units): 5
- Side 2 (units): 6
- Side 3 (units): 5
- Side 4 (units): 6
Perimeter = 5 + 6 + 5 + 6 = 22 units.
Frequently asked questions
What's the difference between perimeter and area?
Perimeter is the distance around the shape (sum of sides). Area is the space inside the shape (length × width for rectangles).
Are all quadrilaterals rectangles?
No. Rectangles are one type. Others include trapezoids, parallelograms, rhombuses, and irregular quadrilaterals.
Can the sides be different lengths?
Yes, any 4-sided shape is a quadrilateral. Sides can be all different (irregular quadrilateral).
What's a regular quadrilateral?
A square: all four sides equal, all angles 90°.