12. If a regular octagon is inscribed in a circle, find the measure of the arc cut off by its side. A. 90 В. 72 С. 60 D. 45

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
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Chapter9: Surfaces And Solids
Section9.4: Polyhedrons And Spheres
Problem 23E: The surface of a soccer ball is composed of 12 regular pentagons and 20 regular hexagons. With each...
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Please provide the complete solution of at least three sub-parts 

12. If a regular octagon is inscribed in a circle, find the measure of the arc cut off by
its side.
А. 90
13. In circle O, MR is perpendicular to BD. If BD = 16 and OM = 10, find O1.
В. 72
С. 60
D. 45
А. 4
В. 6
С. 8
M
D. 10
14. Quadrilateral EMIL is inscribed in circle D. If m¿LEM= 78 and mzELI= 95, find
MZEMI.
A. 78
В. 85
C. 95
D. 105
G
15. If in circle O, mGE =64, then m¿GOE= ,
А. 64
В. 59
С. 85
D. 92
E
Transcribed Image Text:12. If a regular octagon is inscribed in a circle, find the measure of the arc cut off by its side. А. 90 13. In circle O, MR is perpendicular to BD. If BD = 16 and OM = 10, find O1. В. 72 С. 60 D. 45 А. 4 В. 6 С. 8 M D. 10 14. Quadrilateral EMIL is inscribed in circle D. If m¿LEM= 78 and mzELI= 95, find MZEMI. A. 78 В. 85 C. 95 D. 105 G 15. If in circle O, mGE =64, then m¿GOE= , А. 64 В. 59 С. 85 D. 92 E
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