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Williamsburg High School for Architecture and Design

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You are here: Home / Teacher Posts / The Six Basic Constructions

The Six Basic Constructions

October 6, 2013 By Ms. Terraferma

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This week in Geometry we will be using a compass and straightedge to perform the six basic constructions:

1) Copying a line segment

2) Copying an angle

3) Creating a perpendicular bisector

4) Creating an angle bisector

5) Creating parallel lines

6) Creating a perpendicular line through a given point

When creating a perfect construction no numbers are involved.  We do not measure, but rather we mark off distance by creating arcs (or congruent circles) using a compass.

There are many videos on you tube that demonstrate each construction.

For an animated tutorial: Click here  or go to http://www.mathsisfun.com/geometry/constructions.html

 

Filed Under: Teacher Posts Tagged With: circles, compass, constructions, geometry

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About Ms. Terraferma

Ms. Terraferma is the 10th and 12th grade guidance counselor. She can be reached at 718-388-1260 x3311 or terraferma@whsad.org.

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