Question

The total length of a closed figure is called _____.
(a) Area
(b) Volume
(c) Perimeter
(d) Region

Answer 1

Hint: Write the definition of each of the terms given in the options and choose the one which matches the best with the definition given in the question to fill up the blanks.

Complete Step-by-step answer:
We have to choose the term from the options which best satisfies the blank in the question.
We will write the definition of each of the terms given in the options.
We will first consider the term area.
The area is defined as the space occupied by a flat shape or the surface of an object. The unit of area is the square of the length of the side.
We will now consider the term volume.
Volume is the quantity of three-dimensional space enclosed by a close surface, i.e., the space that a substance or a shape occupies. The unit of volume is the cube of the length of the side.
We will now consider the term perimeter.
Perimeter is defined as the path or the boundary that surrounds the shape. The unit of the perimeter is the same as the unit of length.
We will now consider the term region.
A region is a non-empty space which is simply connected.
Thus, we observe that the total length of a closed figure is called the perimeter.
Hence, the correct answer is the perimeter, which is option (c).

Note: We can’t solve this question without using the definitions of each of the terms given in the options. We must know the definitions of these terms and the units of measurements of each of the terms.