Question

The perimeter of a plane figure is the length
of what?

Answer 1

Answer:

The length of the boundary of a closed figure is called the perimeter of the plane figure. The units of perimeter are same as that of length, i.e., m, cm, mm, etc. Area: A part of the plane enclosed by a simple closed figure is called a plane region and the measurement of plane region enclosed is called its area.

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Answer 2

Answer:

Perimeter is measured in units of length such as centimetre (cm) and metre (m). Definition of Area: The area (A) of a closed plane figure is the region of the plane enclosed by the figure's boundary. Area is measured in square units of length such as square centimetre (cm2) and square metre (m2).