perpendicular line construction aim: divide a line in half at 90º perpendicular bisector...
TRANSCRIPT
Perpendicular line Construction
Aim:Divide a line in half at 90º
Perpendicular Bisector
Perpendicular Line from a point NEAR a line
PP
P
Perpendicular Line from a point ON a line
Perpendicular Bisector A
Step1
Aim: Divide a line in half at 90º
Click to start
Rule a line
(leaving some space on each side of the line)
Home
Perpendicular Bisector A
Compass point
Set your compass to
about ¾ of the line length
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point
Set your compass to
about ¾ of the line length
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point
Set your compass to
about ¾ of the line length
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point Arc into space
each side of the line
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point Arc into space
each side of the line
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point Arc into space
each side of the line
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point Arc into space
each side of the line
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector
Compass point Arc into space
each side of the line
Step1
Aim: Divide a line in half at 90º
Home
Perpendicular Bisector B
Compass point
Arc into space each side of
the line
Step1 Step2
Aim: Divide a line in half at 90º
Keep the compass the
same
Home
Perpendicular Bisector
Compass point
Arc into space each side of
the line
Step1 Step2
Aim: Divide a line in half at 90º
Keep the compass the
same
Home
Perpendicular Bisector
Compass point
Arc into space each side of
the line
Step1 Step2
Aim: Divide a line in half at 90º
Keep the compass the
same
Home
Perpendicular Bisector
Compass point
Arc into space each side of
the line
Step1 Step2
Aim: Divide a line in half at 90º
Home
Aim: Divide a line in half at 90º
Perpendicular Bisector C
With this point
Use a ruler to join this point
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Step1 Step2 Step3 Home
Perpendicular Bisector
Aim: Divide a line in half at 90º
And half way
This should be 90º
90º
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Perpendicular bisector
Step1 Step2 Step3 The End Circumcircle Home
Circumcircle Do the Perpendicular Bisectors of the sides of a triangle meet at one point?
This?
Step1 Step2 Step3 The End Circumcircle Home
Circumcircle Do the Perpendicular Bisectors of the sides of a triangle meet at one point?
OR This?
Step1 Step2 Step3 The End Circumcircle Home
Circumcircle Do the Perpendicular Bisectors of the sides of a triangle meet at one point?
Step1 Step2 Step3 The End Circumcircle Home
Perpendicular Line from a Point A
Aim: Construct a line at 90º through a point near a line
P
Step1
Rule a line
Mark a point near the line (about 4cm away is fine)
Leave some space on either side of the line
Click to start
Home
Perpendicular Line from a Point A
Compass point
Set your compass to reach over the line so the arc will cut twice
Aim: Construct a line at 90º through a point near a line
P
Step1 Home
Perpendicular Line from a Point
Compass point
Set your compass to reach over the line so the arc will cut twice
Aim: Construct a line at 90º through a point near a line
P
Step1 Home
Perpendicular Line from a Point
Compass point
Aim: Construct a line at 90º through a point near a line
P
Move your compass to one side
Step1 Home
Perpendicular Line from a Point
Compass point
Aim: Construct a line at 90º through a point near a line
P
Step1 Home
Perpendicular Line from a Point
Compass point
Aim: Construct a line at 90º through a point near a line
P
Step1 Home
Perpendicular Line from a Point
Compass point
Aim: Construct a line at 90º through a point near a line
P
Step1 Home
Perpendicular Line from a Point B
Aim: Construct a line at 90º through a point near a line
P
Step1 Step2 Home
P
Perpendicular Line from a Point
Aim: Construct a line at 90º through a point near a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point near a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point near a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Home
P
Perpendicular Line from a Point C
Compass point
Arc into space each side of
the line
Keep the compass the
same
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Keep the compass the
same
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Keep the compass the
same
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Aim: Construct a line at 90º through a point near a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point D
With this point
Use a ruler to join this point
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Aim: Construct a line at 90º through a point near a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
This should be 90º
90º
Perpendicular Line
Step1 Step2 Step3 The End
Aim: Construct a line at 90º through a point near a line
Home
Perpendicular Line from a Point A
Aim: Construct a line at 90º through a point on a line
P
Step1
Click to start
Rule a line
Mark a point on the line (not in the middle)
Leave some space on either side of the line
Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point A
Compass point
Aim: Construct a line at 90º through a point on a line
P
Mark an arc on both sides of
point P
Step1 Home
Perpendicular Line from a Point
Compass point
Set compass to ¾ the length of the arc
Aim: Construct a line at 90º through a point on a line
P
Step1 Step2 Home
Perpendicular Line from a Point
Compass point
Set compass to ¾ the length of the arc
Aim: Construct a line at 90º through a point on a line
P
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point
Compass point Arc into space
each side of the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Home
P
Perpendicular Line from a Point C
Compass point
Arc into space each side of
the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Aim: Construct a line at 90º through a point on a line
Keep the compass the
same
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point
Compass point
Arc into space each side of
the line
Aim: Construct a line at 90º through a point on a line
Step1 Step2 Step3 Home
P
Perpendicular Line from a Point D
With this point
Use a ruler to join this point
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Aim: Construct a line at 90º through a point on a line
Step1 Step2 Step3 Home
PP
Perpendicular Line from a Point
This should be 90º
90º
Perpendicular Line
Step1 Step2 Step3 The End
Aim: Construct a line at 90º through a point on a line
Home