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Learning by Doing

Objective: Construction of a parallel line to a given line through a point outside
the line by paper folding.
Materials Required: A sheet of paper, a pencil
Procedure:
• Take a sheet of paper and fold it in half.

• Unfold the paper and mark the crease as line l. Mark a point A on the paper outside l.

A

l

• Fold the paper perpendicular to the line l such that this perpendicular passes through
A. Name the perpendicular AN.

A

N

• Make a fold perpendicular to this perpendicular through the point A. Name the new
perpendicular line as m. Now, l || m.

A
m

l
N

351 Construction of Basic Geometrical Shapes