Question

The figure given below is made of squares. The area of each square in the is 4 cm². Find the perimeter of the whole figure.

• A. 24 cm
• B. 28 cm
• C. 20 cm
• D. 44 cm

Answer 1

The correct option is B 28 cm

Given,
Area of each square = 4 cm²

We know that,
Area of square = side $\times$ side
$\therefore$ side $\times$ side = 4 cm²
$\Rightarrow$ side = 2 cm

i.e, Length of each side of the square = 2 cm

Now, looking at the figure we can say that it is a rectangle.
Length of the rectangle
= 5 x Length of one side of square
= 5 $\times$ 2
= 10 cm
Breadth of the rectangle
= 2 x Breadth of one side of square
= 2 $\times$ 2
= 4 cm

$\therefore$ Perimeter of the rectangle
= 2 $\times$ (Length + Breadth)
= 2 $\times$ (10 + 4)
= 2 x 14
= 28 cm