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A biangle is a polygon with two sides and two angles. We cannot construct them in Euclidean geometry but we could in elliptic geometry. In the picture below, the spheres are tessellated with biangles. What are the angles of the biangles? O a. 90° О Б. 60° Ос. 120° Od. 180° Ое. not among the other choices

A biangle is a polygon with two sides and two angles. We cannot construct them in Euclidean geometry but we could in elliptic geometry. In the picture below, the spheres are tessellated with biangles. What are the angles of the biangles? O a. 90° О Б. 60° Ос. 120° Od. 180° Ое. not among the other choices

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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A biangle is a polygon with two sides and two angles. We cannot construct them in Euclidean geometry but we could in elliptic geometry. In the picture below, the spheres are tessellated with biangles. What are the angles of the biangles? a. 90° O b. 60° Ос. 120° O d. 180° O e. not among the other choices
Transcribed Image Text:A biangle is a polygon with two sides and two angles. We cannot construct them in Euclidean geometry but we could in elliptic geometry. In the picture below, the spheres are tessellated with biangles. What are the angles of the biangles? a. 90° O b. 60° Ос. 120° O d. 180° O e. not among the other choices
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