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Mathematics 9 Online
OpenStudy (anonymous):

Find the measure of angle ABD if the measure of angle DBC is 42 degrees and the measure of angle ABC is 88 degrees.

OpenStudy (anonymous):

Remember that a triangle's angles all add up to 180 degrees. So the answer is 180 - (88 + 42) You can simplify.

OpenStudy (anonymous):

130

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