Question

Write in the form of an algebraic expression:
i) Perimeter $\left(P\right)$ of a rectangle is two times the sum of its length $\left(l\right)$ and its breadth $\left(b\right)$

Answer 1

Step: Write the algebraic expression
Given:
$\text{Length of the rectangle}=l$
$\text{Breadth of the rectangle}=b$
$\text{Perimeter of the rectangle}=P$
$\text{Sum of length and breadth}=l+b$
$\text{Perimeter of a rectangle}=2(\text{Length}+\text{Breadth})$
$\Rightarrow P=2(l+b)$
Hence, the required expression is $P=2(l+b)$