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In the diagram, CD is a tangent to the circle with centre O and AOBD is a straig www. A 32° 0 B X

In the diagram, CD is a tangent to the circle with centre O and AOBD is a straig www. A 32° 0 B X

Elementary Geometry For College Students, 7e
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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In the diagram, CD is a tangent to the circle with centre O and AOBD is a straight line. A 32° FIND THE VALUE OF X. 0 C B X D
Transcribed Image Text:In the diagram, CD is a tangent to the circle with centre O and AOBD is a straight line. A 32° FIND THE VALUE OF X. 0 C B X D
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why the angle OCD is equal to 90 degree?

Given Cennect OA = OC = 8 and OC с соса = <а and = 32° = (COD = <A + LOCA = 32+32° { ₁ : <A = ( B =) a=b =7 ८coD = 64 oc is r, CD is tangent to circle <OCD= 90°
Transcribed Image Text:Given Cennect OA = OC = 8 and OC с соса = <а and = 32° = (COD = <A + LOCA = 32+32° { ₁ : <A = ( B =) a=b =7 ८coD = 64 oc is r, CD is tangent to circle <OCD= 90°
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