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  1. Perimeter - Wikipedia

    A perimeter is the length of a closed boundary that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional line. The perimeter of a circle or an ellipse is called its …

  2. Perimeter - Math is Fun

    Perimeter is the distance around a two-dimensional shape. 3 + 3 + 3 + 3 + 3 = 5×3 = 15. The perimeter of a circle is called the circumference:

  3. Perimeter Calculator

    Use this perimeter calculator to easily calculate the perimeter of common bodies like a square, rectangle, triangle, circle, parallelogram, trapezoid, ellipse, regular octagon, and sector of a circle.

  4. How To Find Perimeter? Definition, Formulas, Examples, Facts

    The perimeter of a shape is defined as the total length of its boundary. Learn how to find th eperimeter of regular & irregular shapes, formulas, and examples.

  5. PERIMETER Definition & Meaning - Merriam-Webster

    In geometry, perimeter refers to the boundary of a closed plane figure. You might remember calculating perimeters in school. If each side of an equilateral triangle measures 9 feet, then the perimeter of the …

  6. How to Find Perimeter in 3 Easy Steps - Mashup Math

    Apr 23, 2024 · For each example of how to find perimeter in this guide, we will use a simple 3-step method for finding perimeter that you can use to find the perimeter of any shape and to solve any …

  7. Perimeter - Math.net

    The perimeter is the total length or distance around a two dimensional shape. In the figure below, the perimeter of each shape is the sum of the lengths of each side, shown in red.

  8. Perimeter Calculator 2026 | All Shapes | OmniCalculator

    1 day ago · Free perimeter calculator for all shapes. Calculate perimeter of rectangles, squares, triangles, circles, polygons & more. Step-by-step formulas with unit conversion.

  9. Perimeter: Definition, Formulas & Easy Examples | Maths - Vedantu

    Perimeter is defined as the total length around the boundary of a closed two-dimensional shape. In easy words, it’s the distance you would cover if you walked along the border of a shape like a square, …

  10. Perimeter: Definition and How to Find with Formulas & Examples

    Perimeter, as well as the area, are the two important parameters of a 2D shape. Here, we are talking about the perimeter and it is the distance covered around the two-dimensional figure.