Question

Find the perimeter of the square whose side is of 15 cm in length in sq.cm

Answer 1

Hint: The perimeter is defined as the boundary of a geometrical figure formed by a continuous line. The value of the perimeter is the length of this boundary. There are different formulas for calculating the perimeter of different figures; it is simply the sum of all the sides present in the figure. Here, we are given the measure of the side of a square, so we can find out its perimeter easily.

Complete step-by-step answer:
The side of the square is equal to 15 cm.
As the perimeter is the sum of all the sides in a figure, the square has four sides so its $ perimeter = side + side + side + side = 4 \times side $ .
The formula for calculating the perimeter of a square is –
 \[
  Perimeter = {\text{ }}4 \times side \\
   \Rightarrow Perimeter = 4 \times 15 \\
   \Rightarrow Perimeter = 60\,cm \;
 \]
Hence, the perimeter of the square whose side is 15 cm is 60 cm.
So, the correct answer is “60 cm”.

Note: There are several units to express the measure of a quantity. Centimeter, meter, millimeter, and decimetre are some of the units used to express length. Kilometer is the biggest unit, one kilometer consists of one thousand meters, and one meter consists of 100 centimeters, using the relation between the units we can convert any unit to any other one. In the given question, we have to find the perimeter in centimeter, and the side is also given in centimeter that’s why we do not convert the units in this question, otherwise, we would have to first convert the units and then find out the perimeter of the square.