Answer :
In this Ratio and Proportion question, The total length of wire required for a 20x20 grid, given that a 3x3 grid uses 24cm of wire, is 1066.66 cm. We arrive at this solution by establishing a ratio between the wire required per square in a 3x3 grid and applying it to a 20x20 grid.
In this problem, we're looking to determine the length of wire needed for a 20x20 grid, given that a 3x3 grid requires 24 cm of wire. To determine this, we develop a ratio using the simple relationship between the number of squares in the grid and the wire length.
To begin with, a 3x3 grid has 9 squares and uses 24cm of wire. So, for each square, 24/9 cm of wire is needed.
A 20x20 grid contains 400 squares. Hence, the total wire length needed would be 400 * 24/9 cm = 1066.66 cm.
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Answer:
840cm
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