draw a line segment pq equal to    7 cm using ruler compasses obtain a line segment of length1by 2 pq measure each part answer with step.     

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Please find below the solution to the asked query:

Given: PQ=7 cmTo construct: PR=RQ=12PQSteps of construction:1. Draw a line segment PQ of length 7 cm.2. With P as centre and using compass, draw two arcs of radius more than half the length of PQ on opposite sides of PQ.3. Again, with Q as centre, draw another pair of arcs to cut the arcs of step 2 at points A and B.4. Join points A and B to intersect PQ at point R.Thus, PR and RQ are the line segment of length 12PQ.The length of each part PR and RQ is 72 cm=3.5 cm

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