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GEOMETRY HELP PLEASE URGENT

GEOMETRY HELP PLEASE URGENT-example-1
User Sshilovsky
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Lets O is the center of the circle and Lets A is a point cut on CD from O

mCD = m<COD

OA is perpendicular bisector of CD so OA = 1/2 CD = 1/2(12.7) = 6.35

Sin (DOA) = AD/OD = 6.35 / 9.06

Sin DOA = 0.7009

<DOA = 44.5°

<COD = 2 x 44.5°

<COD = 89°

mCD = <COD = 89°

Answer: 89°

User Shaina
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