Question

Calculate the area of the shaded portion if each of the small squares has an area $1$ mm${}^2$.

• A. 36

Answer 1

The correct option is A 36
Let's consider the shaded portion as $ABCD$

Here, each small square has an area of $1{\text{mm}}^2$.
$\therefore$ Side length of each small square $=1\text{mm}$.
Now, For the shaded region:
Length of one side $AB=6\text{mm}$
Similarly the length of the other side $BC=6\text{mm}$
$\therefore ABCD$ is a square.
And hence, its area $=A{B}^2=6^2=36$ mm${}^2$.