3 years ago

GEOMETRY HELP PLEASE URGENT

Mathematics

1 answer:

KiRa [710]3 years ago

5 0

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°

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