Question

Then given figure is made up of identical squares. The total area of the figure is $576c{m}^2$. What is the perimeter of the figure?

• A. $320cm$
• B. $160cm$
• C. $240cm$
• D. $200cm$

Answer 1

Answer: (B)

$160cm$

Number of squares in given figure $=9$
Area of $9$ squares $=576c{m}^2$
Area of $1$ square $=576÷9=64c{m}^2$
$=8cm\times 8cm$
$\therefore$ Side of $1$ square $=8cm$
$\therefore$ Perimeter of the given figure
$=20\times 8cm=160cm$.