A regular pentagon is shown beloW. Line m passes through a vertex and bisects a side. Line n passes through two vertices. Point K is the center of the pentagon. Which transformation(s) must map the pentagon exactly onto itself? Choose all that apply. OReflection across line m O Counterclockwise rotation about K by 240° O Reflection across line n O Clockwise rotation about K by 216° O None of the above

A regular pentagon is shown beloW. Line m passes through a vertex and bisects a side. Line n passes through two vertices. Point K is the center of the pentagon. Which transformation(s) must map the pentagon exactly onto itself? Choose all that apply. OReflection across line m O Counterclockwise rotation about K by 240° O Reflection across line n O Clockwise rotation about K by 216° O None of the above

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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Question 30
Initial Knowledge Check
A regular pentagon is shown below.
Line m passes through a vertex and bisects a side.
Line n passes through two vertices.
Point K is the center of the pentagon.
Which transformation(s) must map the pentagon
exactly onto itself? Choose all that apply.
O Reflection across line m
O Counterclockwise rotation about K by 240°
O Reflection across line n
O Clockwise rotation about K by 216
O None of the above
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