Answer:
7.5 cm²
Step-by-step explanation:
Note that [tex]\sqrt{120}[/tex] = [tex]\sqrt{4(30)}[/tex] = 2[tex]\sqrt{30}[/tex]
Thus the side s of the square = 2[tex]\sqrt{30}[/tex] ÷ 4 = 0.5[tex]\sqrt{30}[/tex]
Hence
A = s² = (0.5[tex]\sqrt{30}[/tex])² = 0.25 × 30 = 7.5
