obelen78 obelen78

13-02-2017
Mathematics

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Segment DC is a diameter of circle A in the figure below. If angle DAB measures 34 degrees, what is the measure of arc BC?

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aidanhd aidanhd

13-02-2017

180 - 34 = 146 degrees

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Christinecoconnor Christinecoconnor

13-02-2017

Since a circle is 360°, half of it is 180°. Angle DAB is 34°, meaning arc DB is also 34°. Arc BC is therefore 146° because 180°-34°=146°.

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