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Mathematics 6 Online
OpenStudy (anonymous):

geometry help please

OpenStudy (anonymous):

OpenStudy (btaylor):

We know that the sum of the angles in a triangle is 180 degrees. Therefore, DCB + BDC + DBC = 180. --> 46 + 90 + DBC = 180 --> DBC = 44 degrees arc CD will have a measure of 88 degrees, so arc CAD will have a measure of 360 - 88 = 272 degrees. So b is the right answer.

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