presentation slide 6
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8/6/2019 Presentation Slide 6
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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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�Pearson Malaysia Sdn Bhd
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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�Pearson Malaysia Sdn Bhd
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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�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 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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�Pearson Malaysia Sdn Bhd
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