Question

Consider a rectangle of length $4cm$ and breadth $3cm$.Find the area of given rectangle with suitable units;
$\begin{align}
  & A.12c{{m}^{2}} \\
 & B.12cm \\
 & C.13c{{m}^{2}} \\
 & D.13cm \\
\end{align}$

Answer 1

Hint: For the above question, first consider a rectangle, its breadth and length after that directly apply the formula of area of rectangle and put all values , then calculate it to get the value of area.

Complete step-by-step answer:
To find the area of a given rectangle, let us consider a rectangle of length $4cm$ and breadth $3cm$. In the below figure we have the required rectangle.
 

We also know that the area of the rectangle is a product of its length and breadth.
 Therefore,
Area of rectangle = length $\times $ breadth
Area of rectangle= $4cm\times 3cm$
Now $cm\times cm=c{{m}^{2}}$ and number to number, then we get
Area of rectangle= $12c{{m}^{2}}$
It is the required area of the rectangle.

Hence option A is the correct option.

Note: Rectangle is one of the types of quadrilaterals, which have opposite sides equal and parallel. Also all angles are equal to ${{90}^{\circ }}$. In geometry there are several types of quadrilaterals, each quadrilateral has different properties.