F D E A C

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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Consider AABC and ADEF, both of which lie in the xy-coordinate plane. The pre-image, AABC, is rotated 180° about
the point (0, 2) to obtain the image, ADEF. Julio concludes that both of these triangles are congruent.
F
D
E
B
A
Based on Julio's conclusion, which of the following pairs of angles or pairs of sides of the triangles must be congruent?
Select all that apply.
O ZA ZF
ZC ZD
ZB ZE
AB 2 DF
AC E DF
BC = EF
Transcribed Image Text:Consider AABC and ADEF, both of which lie in the xy-coordinate plane. The pre-image, AABC, is rotated 180° about the point (0, 2) to obtain the image, ADEF. Julio concludes that both of these triangles are congruent. F D E B A Based on Julio's conclusion, which of the following pairs of angles or pairs of sides of the triangles must be congruent? Select all that apply. O ZA ZF ZC ZD ZB ZE AB 2 DF AC E DF BC = EF
Expert Solution
Step 1

As we get DEF by rotating ABC about the point (0,2) in 180°, both the triangles are congruent.

We get the corresponding vertices as

B-EC-FA-D

So the corresponding angles are

BECFAD

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