Question

find the area of a rectangle with length 7 cm and breadth 3 cm​

Answer 1

1. the area of rectangle is lb
2. Given l=7; b=3
3. substituting these values we get
4. 7×3=21 cm^2

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Answer 2

Answer:

The area of a rectangle is $21cm^2.$

Step-by-step explanation:

As per the data given in the above question,

Given that:-

The length of a rectangle = $7cm$

The breadth of a rectangle = $3cm$

We have to find the area of a rectangle,

A rectangle is a four-sided two-dimensional plane figure.

The rectangle is a type of parallelogram that has all of its angles equal.

The area of a rectangle is calculated by multiplying the length and breadth of a rectangle.

Here we have to use the formula of the area of a rectangle,

i.e., $A = l\times b$

Where, l = length  

            b = breadth

Given:- l = $7cm$ and b = $3cm$

Substitute the given values of length and breadth in the above formula we get,

$A = 7\times 3$

Multiplying $7$ by $3$, we get

$A = 21cm^2$

Hence, the required solution is $21cm^2.$