Question

The sides of the rectangle are 10m and 12m respectively, find perimeter.

Answer 1

Hint: To specify a figure most fundamental quantities are perimeter and area. Perimeter can be defined as the total length of the boundary of a geometrical figure. So, using this definition we can easily solve our problem.

Complete step by step answer:

To specify a figure most fundamental quantities are perimeter and area. Perimeter can be defined as the total length of the boundary of a geometrical figure. For example, the perimeter of the square is four times the length of the side.
For our problem, we have a rectangle whose two sides are equal and parallel. The shorter side is called breadth and the longer side is called length. All the sides are perpendicular to each other.
So, the perimeter of the rectangle can be specified by twice the length of one side added to twice the length of the other side.
This can be represented in mathematical expression as: $P=2\cdot (l+b)$ where l is length and b is breadth of the rectangle.
The rectangle has dimensions as 10m and 12m which means length is 12m and breadth is 10m.
So, the perimeter will be:
$\begin{align}
  & P=2\cdot (12+10) \\
 & P=2\times 22 \\
 & P=44m \\
\end{align}$

Hence, the perimeter is 44m.

Note: The key step for solving this problem is the knowledge of various geometrical parameters associated with a figure. In this particular case we are required to find the perimeter of the rectangle. So, basic knowledge of the rectangle and its perimeter is enough to solve this problem.