# Boundary vs. Perimeter

By Jaxson

• Perimeter

A perimeter is a path that surrounds a two-dimensional shape. The term may be used either for the path or its lengthâ€”it can be thought of as the length of the outline of a shape. The perimeter of a circle or ellipse is called its circumference.

Calculating the perimeter has several practical applications. A calculated perimeter is the length of fence required to surround a yard or garden. The perimeter of a wheel (its circumference) describes how far it will roll in one revolution. Similarly, the amount of string wound around a spool is related to the spool’s perimeter.

Wikipedia
• Boundary (noun)

The dividing line or location between two areas.

• Boundary (noun)

An edge or line marking an edge of the playing field.

• Boundary (noun)

An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (four) or 6 (six) runs respectively for the batting team.

• Boundary (noun)

The set of points in the closure of a set S, not belonging to the interior of that set.

• Perimeter (noun)

The sum of the distance of all the lengths of the sides of an object.

• Perimeter (noun)

The length of such a boundary.

• Perimeter (noun)

The outer limits of an area. circumference

• Perimeter (noun)

A fortified strip or boundary usually protecting a military position.

• Perimeter (noun)

An instrument for determining the extent and shape of the field of vision.

Wiktionary
• Boundary (noun)

a line which marks the limits of an area; a dividing line

“a county boundary”

“a boundary wall”

“the river marks the boundary between the two regions”

• Boundary (noun)

a limit of something abstract, especially a subject or sphere of activity

“a community without class or political boundaries”

• Boundary (noun)

a hit crossing the limits of the field, scoring four or six runs.

• Perimeter (noun)

the continuous line forming the boundary of a closed geometrical figure

“the perimeter of a rectangle”

• Perimeter (noun)

the outermost parts or boundary of an area or object

“a perimeter fence”

“the perimeter of the garden”

• Perimeter (noun)

an area away from the basket, beyond the reach of the defensive team

“he was very patient in working the ball around the perimeter”

• Perimeter (noun)

an instrument for measuring the extent and characteristics of a person’s field of vision.

Oxford Dictionary