Question

if the area of a square is 225cm2. find its perimeter ​

Answer 1

Answer:

$Area = 225 \: {cm}^{2}$

$side = \sqrt{area}$

$\: \: \: \: \: \: \: \: \: = \sqrt{225} \: cm$

$\: \: \: \: \: \: \: \: = \sqrt{15 \times 15} \: cm$

$\: \: \: \: \: \: \: = 15 \: cm$

$Perimeter = 4 \times side \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =( 4 \times 15)cm \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 60 \: cm$

Answer 2

Answer:

Step-by-step explanation: area =l×b

Length=15

Breadth=15

15×15=225

Perimeter=2(l+b)

=30+30

=60