## 8.1: Natural Frames## Page 261: Darboux Frame## Page 264: Geodesic Curvature and Page 267: Geodesic Torsion## Problem 8.1.1: Curves on a Sphere## Problem 8.1.2: Cylinder Intersecting a Plane## Problem 8.1.4: Curves on a Torus## Problem 8.1.5: Curvature of Level Curves## 8.2: Geodesics## Example 8.2.6: Cylinder## 8.4: Gauss-Bonnet Theorem and Applications## Example 8.4.1: The Moldy Potato Chip## Example 8.4.4: The Moldy Patch## Page 307: Triangulations and Euler Characteristic## 8.5: Intrinsic Geometry## Example 8.5.2: Poincaré Half-Plane |

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