What is the smallest number of colours that must be used (including the light blue) to fill the regions so that no two adjacent regions are the same colour? Note: two regions are adjacent if they share a common border (A) 4 (B) 5 (C) 6
What is the smallest number of colours that must be used (including the light blue) to fill the regions so that no two adjacent regions are the same colour? Note: two regions are adjacent if they share a common border (A) 4 (B) 5 (C) 6
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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
Transcribed Image Text:What is the smallest number of
colours that must be used
(including the light blue) to fill
the regions so that no two
adjacent regions are the same
colour?
Note:
two regions are adjacent if they share a
common border.
you may use the light blue again
●
(A) 4
(B) 5
(C) 6
(D) 7
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