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Mathematics 20 Online
OpenStudy (anonymous):

Point O is the center of this circle. What is mBCA?

OpenStudy (anonymous):

more info needed

OpenStudy (anonymous):

A)56 B)62 C)72 D)76

OpenStudy (anonymous):

find the angle of the sector

OpenStudy (gorv):

AD and BD are the tangent to circle

OpenStudy (gorv):

they alwys make an angle of 90 degree at centre

OpenStudy (gorv):

so what will be BOA

OpenStudy (gorv):

nope

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