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anonymous
 4 years ago
In the diagram of cicle 0, chord CD is parallel to diameter AOB and m(arch)AC= 30 what is m(arch)CD?
anonymous
 4 years ago
In the diagram of cicle 0, chord CD is parallel to diameter AOB and m(arch)AC= 30 what is m(arch)CD?

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Hero
 4 years ago
Best ResponseYou've already chosen the best response.2Try drawing the diagram. There's a drawing button below.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1326756039933:dw sorry for the terrible drawing

Hero
 4 years ago
Best ResponseYou've already chosen the best response.2Arc AOB = 180 Arc AC = 30 Arc DB = 30 Arc (AC + DB) = 60 Arc CD = 180  60 = 120
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