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� Pearson Malaysia Sdn Bhd

Construct a perpendicular bisector of line PQ.

 P Q

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� Pearson Malaysia Sdn Bhd

Construct a perpendicular bisector of line PQ. Adjust your compasses so that its radius is slightly morethan half of the length of PQ.

 P 

Place your compasses at P .

Q

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�Pearson Malaysia Sdn Bhd

With point P as the centre, draw an arc above and belowthe line PQ.

 Adjust your compasses so that its radius is slightly morethan half of the length of PQ.

 P 

Place your compasses at P .

Q

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�Pearson Malaysia Sdn Bhd

With point P as the centre, draw an arc above and belowthe line PQ.

With the same radius and point Q as the centre, drawtwo arcs to intersect the ones drawn previously.

 P Q

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�Pearson Malaysia Sdn Bhd

Join the two intersections with a straight line.

 P Q

With the same radius and point Q as the centre, draw

two arcs to intersect the ones drawn previously.

Perpendicular 

bisector of linePQ

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Construct an angle LMN of 60°.

 M N 

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�Pearson Malaysia Sdn Bhd

Construct an angle LMN of 60°.

 M N 

With point M as the centre, draw a long arc thatintersects line MN .

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�Pearson Malaysia Sdn Bhd

With the same radius and with the point where the arcintersects MN as the centre, draw another arc to

intersect the first.

 M N 

With point M as the centre, draw a long arc thatintersects line MN .

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Label the intersection as L.

 M N 

 L

With the same radius and with the point where the arcintersects MN as the centre, draw another arc to

intersect the first.

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�Pearson Malaysia Sdn Bhd

Joint point L to M with a straight line.Label the intersection as L.

60°

 M N 

 L

 Angle LMN = 60°

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�Pearson Malaysia Sdn Bhd

Construct a perpendicular to the line PQ that passesthrough point T .

 P QT 

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�Pearson Malaysia Sdn Bhd

Construct a perpendicular to the line PQ that passesthrough point T .

With point T as the centre, draw two arcs of the same

radius to intersect line PQ.

 P QT 

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�Pearson Malaysia Sdn Bhd

With point T as the centre, draw two arcs of the same

radius to intersect line PQ.

Label the points  A and B respectively.

 P QT  A B

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Open up the compasses a little more. With  A and B asthe centres, draw arcs of the same radius that intersect

above the line PQ.

 P QT  A B

Label the points  A and B respectively.

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�Pearson Malaysia Sdn Bhd

Open up the compasses a little more. With  A and B asthe centres, draw arcs of the same radius that intersect

above the line PQ.

 P QT  A B

Label the point where the two arcs intersect as C .

C 

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T 

Join point T with point C with a straight line. C T  is theperpendicular to the line PQ passing through T .

 P Q A B

Label the point where the two arcs intersect as C .

C 

Perpendicular to

the line PQ

passing through T