Question

Draw two intersecting line AB and CD.
Take point E on CD. At point E draw a line parallel to AB using compass.
​

Answer 1

Step-by-step explanation:

Step I: Draw a line AB and take two points C and E on its opposite sides.

Step II: With C as centre, draw an arc PQ, which intersects line AB at P and Q.

Step III: Without disturbing the compass and taking P and Q as centres, construct two arcs, such that they intersect each other at H.

Step IV: Join points H and C. HC crosses line AB at D. Thus we got CD⊥AB. 

The diagram is shown in the above image.

Step V: Similarly, take E as centre and draw an arc RS.

Step VI: Taking R and S as centres, draw two arcs which intersect each other at G.

Step VII: Join points G and E. GE crosses AB at F.

We have EF⊥AB.