Draw a line PQ Take a point M outside it through M draw a line parallel to PQ using compasses and reder
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To draw a parallel line to PQ through M follow the below procedure:
- Draw a line PQ of any length.
- Now mark a point M outside the line PQ.
- Now make a line joining M and intersecting PQ.
- Now take any length in the compass and point the compass at the intersection of line through M and line PQ and mark an arc starting from PQ and the line through M.
- Similarly , with the same length in the compass , place the compass at M and mark a similar arc as the above arc.
- Now place the compass on the intersection of line through M and measure the length where the arc intersects the line PQ.
- Now with the same length place the compass on the intersection of arc drawn from M and the line and mark an arc that intersects the arc as shown in figure.
- Now join the points M and the intersection of arc to obtain the parallel line through M.
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Given a line PQ with point A outside it.
2. Mark point B on the lie PQ join AB.
3. Taking B as centre, and any radius, draw an arc intersecting PQ at E, and AB at D.
4. With A as centre, and same radius before, draw an arc intersecting AB at F.
5. Open compass to length DE.
6. Now, with F as centre, and compass opened the same radius as before, draw an arc intersecting the previous arc at H.
7. Draw a line m passing through A and H.
Thus m is parallel to PQ, and passing through point A.
∴m∣∣PQ.
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