Does there exist a regular simple closed curve on a compact surface which cuts the surface into two regions, each with total Gaussian curvature of ? Select one: O a. Yes, and an example is given by a circle on a torus of revolution obtained by rotating this circle about an axis. b. Yes, and an example is given by the equator on the unit sphere. О с. Yes, and an example is given by the unit circle defined by z = 0 on the hyperboloid of one sheet x² + y² = z² = 1. No, by the Jordan curve theorem. No, by Hopf's Umlaufsatz. O f. No, by Fenchel's theorem. Og. No, by the isoperimetric inequality. Oh. No, by Green's theorem. O i. d. O e. No, by the four vertex theorem. Oj. No, by Gauss' Theorema Egregium. Ok. No, by the Gauss-Bonnet theorem.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.4: Polyhedrons And Spheres
Problem 48E: Sketch the solid that results when the given circle of radius length 1 unit is revolved about the...
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Does there exist a regular simple closed curve on a compact surface which cuts the surface into two regions, each with total Gaussian curvature of
?
Select one:
O a. Yes, and an example is given by a circle on a torus of revolution obtained by rotating this circle about an axis.
O b.
Yes, and an example is given by the equator on the unit sphere.
c.
Yes, and an example is given by the unit circle defined by z = 0 on the hyperboloid of one sheet x² + y² − z² = 1.
O d.
No, by the Jordan curve theorem.
No, by Hopf's Umlaufsatz.
No, by Fenchel's theorem.
No, by the isoperimetric inequality.
No, by Green's theorem.
No, by the four vertex theorem.
Oj.
No, by Gauss' Theorema Egregium.
Ok. No, by the Gauss-Bonnet theorem.
e.
O f.
g.
Oh.
O i.
Transcribed Image Text:Does there exist a regular simple closed curve on a compact surface which cuts the surface into two regions, each with total Gaussian curvature of ? Select one: O a. Yes, and an example is given by a circle on a torus of revolution obtained by rotating this circle about an axis. O b. Yes, and an example is given by the equator on the unit sphere. c. Yes, and an example is given by the unit circle defined by z = 0 on the hyperboloid of one sheet x² + y² − z² = 1. O d. No, by the Jordan curve theorem. No, by Hopf's Umlaufsatz. No, by Fenchel's theorem. No, by the isoperimetric inequality. No, by Green's theorem. No, by the four vertex theorem. Oj. No, by Gauss' Theorema Egregium. Ok. No, by the Gauss-Bonnet theorem. e. O f. g. Oh. O i.
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