4 O is the centre of the circle. AB is a diameter. Calculate the values of a and b

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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Hey I need help with question 4 also we have to write the reason for the answer I'm confused 

4 Ois the centre of the circle.
AB is a diameter.
Calculate the values of a and b.
54°
C
5 This shape has a line of symmetry through W.
Calculate the value of w.
W
V
1059
Transcribed Image Text:4 Ois the centre of the circle. AB is a diameter. Calculate the values of a and b. 54° C 5 This shape has a line of symmetry through W. Calculate the value of w. W V 1059
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