Activities/Turtle Art/Tutorials/Euclid: Difference between revisions
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==The Essence of Euclidean Geometry== | ==The Essence of Euclidean Geometry== | ||
The Euclidean constructions are simply postulated, not explained in any way. You have to start somewhere. | |||
# Join two given points with a straight line segment. | # Join two given points with a straight line segment. | ||
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# Given a line segment as radius, with one end designated as the center, draw a circle. | # Given a line segment as radius, with one end designated as the center, draw a circle. | ||
The given points and line segment are in red, and the constructed lines and circles in black. | |||
[[File: | [[File:TAEuclideanConstructionPostulates.png]] | ||
I am going to bypass Euclid's other assumptions until we need them. | I am going to bypass Euclid's other assumptions until we need them. | ||