Answer:
20 x 20 grid = 1066.67 cm wire
Step-by-step explanation:
Using unitary method
9 grid = 24 cm wire
1 grid = [tex]\frac{24}{9}[/tex] cm wire
Multiplying both sides by 400 (20 x 20)
400 grid = [tex]\frac{24}{9} * 400[/tex] cm
20 x 20 grid = 1066.67 cm wire
