assume ABCD is a Lambert quadrilateral with fourth angle at A and prove that ABEF is a Saccheri quadrilateral with summit line AD where the new figure is as described. Support your proof by including a figure with all of the given information indicated with the appropriate indicators but do not indicate any information you prove. a) Let F be along ray AD with DF congruent DA and E is the foot of the perpendicular from F to line BC. b) Let E be along ray BC with CE congruent BC and F is on the perpendicular ray at E with EF congruent BA.

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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 assume ABCD is a Lambert quadrilateral with fourth angle at A and prove that ABEF is a Saccheri quadrilateral with summit line AD where the new figure is as described. Support your proof by including a figure with all of the given information indicated with the appropriate indicators but do not
indicate any information you prove.
a) Let F be along ray AD with DF congruent DA and E is the foot of the perpendicular from F to line BC.

b) Let E be along ray BC with CE congruent BC and F is on the perpendicular ray at E with EF congruent BA.

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