Answer:
Step-by-step explanation:
Perimeter of square = √120 cm
4*side = √120
[tex]4*side=\sqrt{2*2*2*3*5}\\\\4*side=2\sqrt{2*3*5}\\\\side=\frac{2\sqrt{30}}{4}\\\\ side=\frac{\sqrt{30}}{2}\\[/tex]
Area = (side)²
[tex]=(\frac{\sqrt{30}}{2})^{2}\\\\=\frac{(\sqrt{30})^{2}}{2^{2}}\\\\=\frac{30}{4}\\\\=\frac{15}{2}\\\\=7\frac{1}{2}cm^{2}[/tex]
