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Mathematics 9 Online
OpenStudy (anonymous):

In the diagram, point O is the center of the circle. If m∠ABC = 70°, what is m∠AOC ?

OpenStudy (anonymous):

OpenStudy (anonymous):

\[360°-140°=220°\]

OpenStudy (anonymous):

A100° B110° C140° D130°

OpenStudy (anonymous):

Given three points A, B and C on a circle with center O, the angle ∠AOC is twice as large as the angle ∠ABC. so...

OpenStudy (anonymous):

you know the rest ;)

OpenStudy (anonymous):

70*2=140?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

THANK YOU

OpenStudy (anonymous):

THANK YOU

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