Question

To form a rectangle of length 150 cm, 50 squares each having perimeter 12 cm are placed adjacent to each other. Find the area of the rectangle formed.​

Answer 1

Answer:

25 squares each of perimeter 8 cm

Let side of a small square = x cm

Perimeter of small square = 4x = 8 cm

Or, x = 8/4

Or, x = 2 cm

Length of the rectangle = 25×2 = 50 cm

And width of the rectangle = 1×2 = 2 cm

Area of the rectangle = 50×2

Or, Area of the rectangle = 100 cm²

Therefore, the area of the rectangle formed = 100 cm²

Answer 2

Answer:

All sides of a square are equal in measures .

4×side=perimeter of measures

4×side=12

Each side

$= \frac{ { \cancel{12}} \: \: ^{3} }{ \cancel4} \\ \\ = 3cm$

Area of sq= side×side

$= 3 \times 3 {cm}^{2} \\ \\ = {9cm}^{2}$

Total area

$= 50 \times 9 \\ \\ = {450cm}^{2}$

Area of rectangle = 450cm^2

Rectangle length = 150cm

Breadth = 3cm

Area = l×b

=150×3=450cm^2

Hope it helps you from my side :)