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Construct a line segment of length \(2\) \(cm\) using a ruler and compass.
Step 1: Draw a line \(l\). Mark a point \(A\) on a line \(l\).
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Step 2: Place the compasses' pointer on the zero mark of the ruler. Open it to place the pencil point up to the \(2\) \(cm\) mark.
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Step 3: Please see that the opening of the compass has not changed, place the pointer on \(A\) and swing an arc to cut the line \(l\) and then mark the point as \(B\).
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\(AB\) is a line segment of the required length.
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