Perimeter: meaning, definitions and examples

Used when referring to the continuous line forming the boundary of a closed geometric figure, usually in a mathematical or security context.

• The soldiers were ordered to patrol the perimeter of the camp.
• Calculate the perimeter of the rectangle.

Refers to something that indicates the limits of an area; often used in a geographical, property, or abstract context involving limits or borders.

• The river forms the boundary between the two countries.
• Setting boundaries in a relationship is important.

Specifically used to describe the enclosing boundary of a curved geometric figure, especially a circle.

• The circumference of the circle can be calculated using the formula 2πr.
• He measured the circumference of the tree trunk.

Used when focusing on the outer shape or edge of an object or figure, often in a descriptive or artistic context.

• She sketched the outline of the skyline.
• Give me a brief outline of your project.

Used when referring to the entire outer boundary of a specific area, typically in a more technical or mathematical context.

• The perimeter of the rectangle is 20 meters
• They set up a fence around the perimeter of the playground

Refers to an invisible line that marks the limits of an area, often used in contexts involving rules, personal space, or property lines.

• They put up a sign to mark the boundary of their property
• It's important to set boundaries in any relationship

Used to describe the outermost part of an object, surface, or area. It can also indicate a sharpness or a competitive advantage.

• Be careful, the edge of the knife is very sharp
• The village is located on the edge of the forest

Commonly used to describe the dividing line between two countries, regions, or areas. It can also indicate the edge or margin of a physical item like a page or garden.

• The border between the two countries is heavily guarded
• She added a beautiful floral border to her garden