Section 11.5 – Euclid Unparalleled

 

 

Euclidean

Geometry

Spherical

Geometry

Hyperbolic

Geometry

1 line // thru a point

0 lines // thru a point

Infinite lines // thru a point

°

°

°

Line drawn between 2 pts.

Line is a great circle

Line is shortest path

 

 

Orthogonal – intersect at right angles