About 31,000,000 results
Open links in new tab
  1. 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:

  2. 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 …

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

    In geometry, the perimeter of a shape is defined as the total length of its boundary. The perimeter of a shape is determined by adding the length of all the sides and edges enclosing the shape.

  4. Perimeter - Definition, Examples | How to Find Perimeter? - Cuemath

    Perimeter is the total length of the boundary of any closed shape. Explore and learn with concepts, definitions, formulas, solved examples, and practice questions at Cuemath.

  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. 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.

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

    Perimeter measures the distance around a shape, while area measures the space inside the shape. Perimeter is one-dimensional (measured in units of length), while area is two-dimensional (measured …

  8. Perimeter review (article) | Khan Academy

    What is perimeter? Perimeter is the distance around the outside of a two-dimensional shape. The perimeter of the shapes below is shown in blue . Want to learn more about the concept of perimeter? …

  9. Perimeter | Brilliant Math & Science Wiki

    The perimeter of a two-dimensional figure is the length of the boundary of the figure. If the figure is a polygon such as a triangle, square, rectangle, pentagon, etc., then the perimeter is the sum of the …

  10. What is Perimeter in Math? | DreamBox - DoodleLearning

    Perimeter Definition Perimeter refers to the total distance around a shape. It’s like tracing the edges or boundaries of a figure to measure its full length. In simpler terms, imagine tying a string around a …