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Browse High School Constructions
Stars indicate particularly interesting answers or
good places to begin browsing.
 Trisecting an Angle: Proof [6/3/1996]

Is there a proof for how to trisect an angle?
 Trisecting an Angle Using Compass and Straightedge [04/29/2004]

A student claims he can trisect an arbitrary angle with no measuring
and only a straightedge and a compass, using Geometer's Sketchpad to
prove his method is correct. Doctor Math talks about why a
construction alone is not enough to prove the method.
 Trisecting an Angle Using the Conchoid of Nicomedes [08/16/2002]

Is it possible that I could have trisected an angle using the
Nichomedian conchoid?
 Trisecting a Pizza [05/13/2002]

Without the use of a ruler, protractor or other measuring device, is
there a simple way to divide a pizza into 3 equal sized slices?
 Trisecting a Right Angle [12/16/1996]

An explanation of how to trisect a 90 degree angle, plus some
constructions.
 Volume of a Square Pyramid by Construction, not Rote [05/04/2016]

An adult mentor seeks to determine a volume without applying the usual
formula. By extending an insight that only partly applied, Doctor
Greenie stretches her visualization model.
 Why Straightedge and Compass Only? [10/02/2002]

My geometry students want to know why constructions can only be done
using a straightedge and a compass.
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